• 한국작물학회지
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• 제68권2호
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• pp.97-97
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• 2023

• 한국작물학회:학술대회논문집
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• 한국작물학회 2020년도 춘계학술대회
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• pp.39-39
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• 2020

• 한국작물학회:학술대회논문집
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• 한국작물학회 2020년도 추계학술대회
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• pp.64-64
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• 2020

• 한국작물학회:학술대회논문집
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• 한국작물학회 2021년도 춘계학술대회
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• pp.56-56
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• 2021

• 한국식생활문화학회지
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• 제27권6호
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• pp.646-658
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• 2012

This study was conducted to investigate the differences in households, parental perception, and dietary behaviors of preschool children from kindergartens with environment-friendly food service (environment-friendly food service group; EFG) versus children from kindergartens with general food service (general food service group; GFG). We sought this basic information to examine the impact of environment-friendly agricultural products in preschool food services. Age, education level, and monthly family income of the EFG were significantly higher than the GFG. The frequency of purchasing environment-friendly agricultural products was significantly higher in the EFG than the GFG, with the most frequently purchased items in both groups being vegetables. The GFG had a significantly higher perception than the EFG in the superior quality of environment-friendly agricultural products; however, a greater proportion of the GFG than the EFG thought environment-friendly products were too expensive. The most frequent reason for purchasing environment-friendly agricultural products in both groups was safety. When purchasing environment-friendly agricultural products, the most important selection factor for the majority of both groups was the label certifying quality assurance. Both groups also considered price reduction as essential for promoting environment-friendly agricultural products. In regard to parental perceptions on food service in kindergarten, the EFG had a significantly higher satisfaction with the nutritional adequacy of the menu compared to the GFG. Both groups considered food safety and health as primary reasons for using environment-friendly foods in the preschool food service, with a greater proportion of the EFG than the GFG responding this way. There were significant differences between the EFG and GFG, as the main satisfaction from using environment-friendly foods in the EFG was safety, freshness, and good hygiene, whereas the main satisfaction in the GFG was a good food service menu, freshness and good hygiene. Dietary behaviors of preschool children in the EFG were also significantly superior to the GFG. Thus, environment-friendly agricultural products have positive effects on the dietary behaviors of preschool children and should be increased in the preschool food service. Lowering prices and a strict supervision of quality assurance is also necessary to promote consumption of environment-friendly food materials.

• 한국식품영양학회지
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• 제33권2호
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• pp.142-148
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• 2020

The purpose of this study was to investigate the prevalence, toxin gene profiles, and enterotoxin producing ability of Bacillus cereus isolated from environment-friendly vegetables and good agricultural practices (GAP) vegetables. A total of 49 vegetables including 40 environment-friendly vegetables and 9 GAP vegetables were tested. The Vitek 2 system was used to identify B. cereus and the PCR was used to detect 6 toxin genes, respectively. B. cereus was detected in 34 (69.3%) of 49 vegetables and the prevalence of B. cereus in GAP vegetables (44.4%) was lower than in the environment-friendly vegetables (75.0%). The detection rates of entFM, nheA, hblC, and cytK enterotoxin genes, respectively, among all isolates were 100%, 97.0%, 88.2%, and 73.5%, respectively. All of the isolates had at least one or more enterotoxin gene and 20 isolates (58.8%) had hemolysin BL enterotoxin producing ability. The risk of food poisoning from the environment-friendly vegetables and the GAP vegetables has been shown as constant. Thus, it is necessary to expand the supply of GAP vegetables showing lower B. cereus contamination than the environment-friendly vegetables. The characteristics of the environment-friendly vegetables and the GAP vegetables that must be consumed after cleaning should be disseminated to consumers regarding food poisoning prevention.

• 한국물환경학회지
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• 제34권6호
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• pp.688-702
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• 2018

Since the 1970s regulations against the pollution of drinking water have been introduced in Lake Paldang watershed area. To understand the effects of water environment management policies and the impacts of climate changes on Lake Paldang, a long-term comprehensive study of this watershed and the changes in its water environment is required. In this study, we analyzed changes in the weather, hydrology, sources of pollution, water quality, and algal development from 2000 to 2015 year based on the statistical data provided by several national information systems. While the population and amount of sewage in the Lake Paldang watershed increased by about 1.5 times, the amount of animal manure showed a decreasing trend during the same period. The wastewater also increased by about 1.5 times while the amount of water intakes rose by about 1.14 times. The water quality in front of the Paldang Dam, which is the representative monitoring site of the Lake Paldang, was stable. The annual average BOD concentration remained within 2 mg/L, which is a "Good (lb)" level according to the environment standards of Republic of Korea. The development of phytoplankton and harmful cyanobacteria were largely influenced by meteorological factors.

• 대한화학회지
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• 제66권6호
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• pp.472-492
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• 2022

본 연구는 온-오프라인 혼합 학습환경에서 중등과학교사의 학습환경 특이적인 PCK 요소 및 하위요소 탐색을 목적으로 하였다. 중등과학교사 12명을 대상으로 설문, 개별 면담, 수업 관찰 자료를 수집하여 PCK 이론적 틀을 기반으로 연역적으로 분석하고 다시 귀납적 분석을 통해 그 범주를 정교화하였다. 온-오프라인 혼합 학습환경에서 본 연구 교사들의 PCK는 요소별로 학습환경 특이성이 다르고 학습환경 특이성에 따라 PCK 요소별 하위요소가 다른 것으로 나타났다. 온라인 학습환경 특이적인 과학 교수 지향으로 '과학 개념 학습' 목표 지향과 '강의식 수업'의 과학 교수-학습 지향이 있었다. 온-오프라인 혼합 학습환경 특이적인 교육과정에 관한 지식에는 '교육과정 재구성'이 있었으며, 온라인 학습환경 특이적인 교육과정에 관한 지식에는 '학습 목표 선정', '교육과정 자료'가 있었다. 온라인 학습환경 특이적인 과학 교수전략에 관한 지식에는 '과학 주제 특이적 전략', '과학 교과 특이적 전략', '상호작용 전략'이 있었다. 코로나 19 이후 오프라인 학습환경 특이적인 과학 교수전략에 관한 지식에는 '과학 주제 특이적 전략', '상호작용 전략'이 있었다. 온라인 학습환경 특이적인 학생의 과학 학습에 관한 지식에는 '학습을 위한 선지식', '학습 어려움', '학습 동기 및 흥미', '학습 다양성'이 있었으며, 코로나 19 이후 오프라인 학습환경 특이적인 학생의 과학 학습에 관한 지식에는 '학습 어려움'만 있었다. 과학 학습 평가에 관한 지식은 온-오프라인 혼합 학습환경 특이적인 지식과 온라인 학습환경 특이적인 지식이 있었으며, 각각 '평가 내용'과 '평가 방법'이 있었다.

• 대한가정학회지
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• 제43권10호
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• pp.141-153
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• 2005

This study investigated the relationships among personal characteristics(sex, self-concepts, depression, fear, internal locus of control), home environment(physical and psychological environment, parenting style, attachment to mother), school environment(teacher support, peer victimization), and Korean-Chinese children's aggression in Yanji, China. Two hundred and two(90 boys and 112 girls) 6th graders rated themselves on a questionnaire. Correlation analysis, and multiple regression were conducted using SPSS Window vers. 12. Alienation to mother, and overt and relational victimization by peers were positively related, and communication with mother was negatively related to children's proactive aggression. Alienation to mother, and overt victimization by peers were positively related, and communication with mother, support by teacher were negatively related to children's reactive aggression. Alienation to mother, and overt and relational victimization by peers were positively related, and communication with mother and support by teacher were negatively related to children's relational aggression. The factor with the greatest contribution to explaining the aggression of Korean-Chinese in Yanbin was the alienation to mother.

• Environmental Engineering Research
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• 제22권1호
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• pp.125-130
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• 2017

The Korean Ministry of Environment and Daegu Metropolitan City are establishing the Korea Water Cluster, which will focus on promoting and escalating Korean water industries. The water industry, a future-oriented and promising business sector, is continuously growing each year worldwide, so the project is very timely. In reality, however, challenges still need to be addressed, such as accessibility, logistics systems, social infrastructures, and attracting good companies. For the Korea Water Cluster to be successful, those issues should be solved, but it is difficult to untangle the matters only with efforts of the Korean Ministry of Environment and Daegu Metropolitan City since some issues will require a great deal of both money and time. Therefore, it is important for the Korean federal government to administer support and finances for certain parts of the project, and for the Korean Ministry of Environment and Daegu Metropolitan City to take on other issues to ensure the Korea Water Cluster is successful long-term. The success of the Korea Water Cluster project will result in the Korea Water Cluster becoming a global hub for the future water industries.