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유기성폐기물과 밭토양에 대한 붉은줄지렁이와 밭지렁이의 섭식 전후의 분변토 발생량 및 오염물질의 함량 변화
나영은 ( Young Eun Na ) 한국환경농학회 2015 한국환경농학회지 Vol.34 No.2
BACKGROUND: Earthworms are essential detritus feeders that play a vital role in the process of decomposition of organic matter and soil metabolism. The complex process of partial breakdown of organic matter and mixing with mucous and gut microbial flora in the form of earthworm cast results in the reduction of the toxicity. This study focused on the change of cast amount and pollutant contents before and after the eating of the organic waste and upland soil with the two species of earthworm. METHODS AND RESULTS: The two species of earthworms were compared to the cast production. In the upland soil material, the daily amount of worm’s cast was 1.42 g in E. andrei and 0.40 g in A. agrestis. In the organic waste material, the cast of E. andrei was 0.78~0.83 g and the cast of A. agrestis. have not been collected because all earthworms died after the treatment. The heavy metals treated in the upland soil were evaluated the impact of the worm excretion. With the E. andrei, the cast production was decreased 0.1~0.8 times in zinc, 0.2~0.5 times in copper, and 0.1~0.7 times in cadmium compared to the control treatment according to the levels of concentration. With A. agrestis, the cast amount was decreased 0.3~1.1 times in zinc, 0.2~0.3 times in copper, and 0.1~2.1 times in cadmium, respectively. The changes of pollutant contents before and after the eating of the organic wastes with E. andrei were studied. In the treatment of the Alcohol Fermentation Processing Sludge and the Fruit Juice Processing Sludge, heavy metal content of the cast was increased 0.7~53.3% compared to the sludge materials. PAHs contents were decreased 50.1% in the cast of the Alcohol Fermentation Processing Sludge and 36.6% in the cast of the Fruit Juice Processing Sludge, respectively. CONCLUSION: In conclusion, although the A. agrestis was bigger than E. andrei in size and weight, the cast amount of A. agrestis was small. The two species of earthworm was less excretion with high concentration of heavy metals. While the heavy metals such as zinc, copper, and cadmium were considerably accumulated in the cast, the total compounds, PAHs were fairly decomposed. There results would provide us for restoring contaminated soil and cleaning organic wastes.
나영은(Na, Young-eun) 한국언어문학회 2012 한국언어문학 Vol.80 No.-
The purpose of this paper was to examine the development of Korean middle schcol students' attitude towards writing through a short-term longitudinal study. The subject students were found to have had a positive attitude towards writing in the first grade. Their attitude changed towards the negative direction in the second grade, though, and towards the positive direction again in the third grade. The boys' attitude slightly changed in the third grade, though, and the girls had a more positive attitude than the boys for three years. In the second grade, however, the attitude did not have a statistically meaningful difference according to gender. The students had the most positive attitude towards writing in the cognitive domain and the most negative attitude towards writing in the affective domain.
나영아(Young Ah Rha),박정난(Jung Nan Park),나영선(Young Sun Na) 한국조리학회 2004 한국조리학회지 Vol.10 No.4
This study was performed to investigate the effects of pine pollen and horseradish. which were known as antimicrobial materials, on the fermentation of Kimchi. The physicochemical and microbial changes of Kimchi were investigated during period 30-days at 10t. Even though Kimchi added pine pollen or horseradish powder were sustained the higher pH and lower acidity after 10 days, it delayed only I- 2 more days to reach optimal value of Kimchi fermentation in experimental groups than control. The horseradish powder showed the antimicrobial effect of Kimchi at initial stage, but thereafter that effect of pine pollen or horseradish were not significant. Therefore the addition of pine pollen or horseradish powder to Kimchi is not sufficiently effective for extension of shelf-life of Kimchi.
나영아(Young Ah Nha) 한국조리학회 1999 한국조리학회지 Vol.5 No.2
Preservative effects of natural preservatives, citric acid and salt on chopped garlic were investigated. Citric acid was very effective for the repression of bacteria multiplying and browning of chopped garlic in 0.5%∼1% concentration. Salt had an effect on the repression of bacteria multiplying and browning color of chopped garlic except for 1% NaCl. Synergy effect between citric acid and NaCl was also very good for the decreasing of bacteria multiplying and the maintaining of Hunter color of chopped garlic. Compounded effect among the GF, CA and ascorbic acid was somewhat proper in the sensory evaluation of chopped garlic. And the sensory evaluation score was best in chopping size 3㎜(diameter) of chopped garlic and viscosity 4500cp. of chopped garlic.
한국 내 베트남 결혼이민여성의 부모역할에 대한 인식과 실제
나영이 ( Young E Ra ),홍용희 ( Yong Hee Hong ) 한국유아교육학회 2016 유아교육연구 Vol.36 No.2
본 연구는 베트남 결혼이민여성의 부모역할에 대한 인식과 실제를 고찰했다. 연구대상은 베트남 결혼이민여성 10명과 이들의 자녀 21명이다. 본 연구는 어머니 대상 심층면담과 자녀 및 가족의 참여관찰을 통해 수집한 자료를 분석하고 귀납적 방법으로 추론하여 결론을 도출했으며, 연구 결과는 다음과 같다. 베트남 결혼이민여성들이 인식하는 부모역할은 건강 돌보기, 안전하게 보호하기, 상담자 되어주기, 함께 놀아주기, 생활습관 지도하기, 인성 교육하기, 학업 지원하기, 베트남에 대해 가르치기, 생활비 벌어 지원하기로 나타났다. 베트남 결혼이민여성들의 부모역할 실제를 살펴보면, 건강돌보기와 안전하게 보호하기는 잘 수행하고 있었고, 베트남에 대해 자발적이고 적극적으로 가르친 반면, 언어적 상호작용이 필수적인 상담자되어주기, 생활습관 지도하기, 인성 교육하기, 학업 지원하기 역할은 어려워했다. 자녀교육에서 결혼이민여성들이 겪는 어려움을 덜어줄 수 있는 사회적 지지 방안 마련이 요구된다. The purpose of this study was to examine the perception and the practice of parent roles of Vietnamese marriage immigrant women. The subjects in this study were ten Vietnamese marriage immigrant women and their children. As for the data collection, in-depth interview and participant observation were used. The collected data were analyzed and inferred inductively to reach conclusions. The findings of the study were as follows: First, the parent roles perceived by the Vietnamese marriage immigrant women include taking care of health, protecting children safe, being counselors for them, playing with them, instructing them with life habits, providing personality education, supporting their children’s study, teaching about Vietnam, and contributing to the living expenses. Second, Vietnamese marriage immigrant women do taking care of health, protecting children safe well, but they had difficulties with the role of being counselors, instructing life habits, providing personality education, supporting study due to lack of linguistic interaction, and they are teaching about Vietnam spontaneously and actively. Social supports to reduce difficulties of Vietnamese marriage immigrant women’s child education are needed.