• Korean Journal of Breeding Science
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• v.42 no.5
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• pp.565-573
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• 2010

Thinning of apple fruitlets is one of the most laborious and important works for the improvement of fruit quality and for the promotion of sufficient flower bud formation to prevent alternate bearing in commercial cultivars. Lateral fruits of self-thinning apple cultivars fall naturally within 30 days after full bloom and only central fruit remains to mature. Differences of gene expression between central fruit and lateral fruit were investigated by differential display (DD) PCR. Partial cDNAs of 30 clones from the central fruit and 24 clones from the lateral fruit were selected for nucleotide sequence determination and homology searches. The levels of transcripts coding for proteins involved in pathogenesis related proteins, senescence, temperature stress, protein degradation, fruit browning, sorbitol metabolism were significantly higher in pedicels of lateral fruit than in pedicels of central fruit. On the other hand, the up-regulation of proteins involved in anthocyanin and flavanol biosynthesis and ethylene synthesis were observed in pedicels of central fruit. In Real time PCR analysis, cytochrome P450 gene was confirmed as showing a higher expression level in lateral fruit than in central fruit. The results of this study indicate that differentially expressed genes are related to self-thinning characteristics in apple tree.

• The Journal of the Korea Contents Association
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• v.19 no.2
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• pp.424-437
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• 2019

The purpose of this study is to analyze the characteristics and stigma of children and adolescents, and the message types for them in NPO's fundraising advertisement videos in Korea. The subjects are 152 children and adolescents in 147 videos from seven major non-profit organizations. The analysis tools were constructed based on prior studies, and it was carried out after preliminary study. The results are as follows. First, the characteristics of children and adolescents indicated that the ratio of children and infants, main-role, poverty situation, one-parent family, and ward-role appeared the most. Second, 'general' was the highest in the stigma format, and 'hazard' and 'mark' was high in the challenge format. Third, the stigma message was the highest in message type. Finally, as of 2014, the ratio of stigma message and value-exclusion message increased, and the ratio of challenge message and mixed message decreased. The research suggests that a paradigm shift in the format of NPO's typical fundraising advertisement videos is necessary, as the videos may not protect the human rights of children and adolescents and may have negative effects such as stigma.

• Korean Journal of Culture and Social Issue
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• v.22 no.4
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• pp.567-593
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• 2016

This study examined longitudinal mediated effects of informal labeling on the relationship between adolescent abuse and academic achievement using autoregressive cross-lagged modeling. Data were obtained from the second, third, and fourth waves of the middle school student cohort (N=3,168) of the Korean Youth Panel Survey. The major longitudinal findings of this study are as follows: First, adolescent abuse was found to have a positive association with future informal labeling. Second, informal labeling was found to have a negative association with future academic achievement. Finally, the longitudinal relationship between adolescent abuse and academic achievement was partially mediated by informal labeling. Based on these results, this study suggests directions for adolescent abuse prevention. The need for education and prevention of informal labeling was discussed, as well as the direction of intervention programs for adolescents with experience of informal labeling. Furthermore, this study may provide empirical evidence for labeling theory and contribute to increasing awareness on the longitudinal influence of adolescent abuse and informal labeling.

• Proceedings of the Korea Contents Association Conference
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• 2017.05a
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• pp.151-152
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• 2017

본 연구는 낙전당(樂全堂) 신익성(申翊聖, 1588~1644)이 이수(二水, 지금의 양수리) 지역에 조성한 것으로 추정되는 동회별서의 일원에 대해, 기문(記文)과 지리지에 나타난 내용을 바탕으로 위치를 비정하고자 하였다. 또한 동회지역의 선영을 중심으로 확장되는 공간개념과 백운루 일원의 공간분석을 통해 동회지역의 장소에 대한 심도 있는 고증으로, 추후 문화콘텐츠 활용을 위한 기초자료를 남기는데 의의를 두고자 하였다.

• The Science & Technology
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• no.7 s.410
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• pp.10-17
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• 2003

지구상에 산재하는 고대 문명을 조사한 많은 학자들은 고대 유물을 가운데 하늘에 대한 내밀하고 복잡한 지식 체계가 숨겨져 있다는 것을 발견하고는 깜짝 놀란다. 고대인들은 동지와 하지의 일출과 일몰 및 달의 정돈 방향을 장기간에 걸쳐 지평선상의 적당한 지점에 계속 말뚝을 설치해 보면서 해와 달의 운행을 연구했다. 세월이 흐르면서 건축가들은 하늘을 충분히 이해하여 천체 운행의 한 주기 속에서 그 천체의 출몰 지점들이 갖는 관계를 알게 되었다.

• The Safety technology
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• no.99
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• pp.40-41
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• 2006

우리는 정을 너무 쉽게 지나치며 잊고 살아가는 것은 아닌지, 강렬하고 화려한 햇빛에 가려진 달빛의 우아함을 잊고 살아가고 있는 것은 아닌지 새삼 생각게 한다. 하지만 어쩌면, 잊고 살아간다는 것은 숨 가쁘게 돌아가는 인생을 살아가고 있는지도 모른다. 이처럼 숨 가쁘게 지난 20년이 넘도록 안전만 바라보며, 우리 나라의 안전의 뿌리를 내리게 한 한사람이 있다. 충북대학교 안전공학과 정국삼 교수님이다. 안전은 더불어 살아가는 삶이 자신의 낙이라고 말하는 이분을 훈풍으로 봄을 재촉하는 따뜻한 오후 연구실에서 만나 보았다.

• Korean Journal of Soil Science and Fertilizer
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• v.16 no.3
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• pp.250-255
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• 1983

Newly manufactured compound fertilizers for chestnut trees developed by Chosun Fertilizer Inc. were tested to evaluate their effectiveness. An experiment was carried out in chestnut farm with 4 years old Eungi Var. from 1981 to 1982. The results obtained are as follows: 1. The growth of chestnut trees was generally good in plots of compound fertilizer contained boron (B C F). 2. The number of ripened strobiles was significantly increased by reducing the ratio of dropped strobiles in plot of B C F. 3. The yield of chestnut by B C F was markedly increased, 6 times more than that of compound fertilizer without boron. 4. Boron content in soil and plant by application of B C F was relatively high, resulting in high production of chestnut. 5. B C F was effective in chestnut orchard to increase nut production markedly.

• The Journal of the Korea Contents Association
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• v.20 no.6
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• pp.51-63
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• 2020

This study analyzed newspaper reports in the United States and South Korea that focused on Parasite's unprecedented performance at the 2020 Academy Awards. The research focused on the power relationship between 'the established and the outsiders (Elias & Scotson, 1994)' as represented by the Academy Awards and Parasite, respectively. Qualitative content analysis and text analysis were conducted to examine the reporting of American and South Korean newspapers and illuminate three aspects of the power relations between the Academy Awards and Parasite. Three major findings were derived. First, the Academy traditionally has a reputation for marginalizing films with a non-English or Asian background, but recognition of Parasite at the 92nd ceremony changed the Academy's established position of power. Second, historically, the Academy Awards had been characterized by a group charisma that exerts stigmatization (through an English-oriented policy and language stigmatization) and accords North American films priority over non-English movies. Lastly, the reports of newspapers in the two countries are generally similar, but the Korean articles internalized the individual, society, and the state.

• The Journal of the Korea Contents Association
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• v.16 no.8
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• pp.247-256
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• 2016

The purpose of this study was to identify the mediating effect of hope relationships among social support, social stigma and quality of life. It was conducted to measure social support, social stigma, hope and quality of life from 197 HIV-infected people. Data collection was carried out through one-on-one interviews by counselling nurse. The mediating effect was analyzed through Structure Equation Model using AMOS 21.0 program and indirect effect was analyzed by bootstrapping method. As a result of analysis, first, social support had a significant positive effect on quality of life. But social stigma had a significant negative effect on quality of life. Second, social support had a significant positive effect on hope. But social stigma had a significant negative effect on hope. Third, hope had significant mediating effect within the influence of social support and social stigma on quality of life. It is suggested to develop and apply comprehensive intervention program for improve quality of life of HIV infected people in community.

• Korean Journal of Organic Agriculture
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• v.24 no.4
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• pp.747-758
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• 2016

Quality characteristics, such as moisture content, pH, acidity, sugar content, salinity, flavor, taste, color, and overall acceptance of apple Jangachi prepared with different apple cultivars were investigated after different times in storage. The initial moisture content of apple Jangachi was 14.19-16.94% according to cultivar. After 5 days of storage, the moisture content increased to 23.26-26.91%. The pH was 3.98-4.55 regardless of cultivar. Total acidity decreased at first and then increased slightly after 10 days in the range of 0.8% to 1.3%. The sugar content of apple Jangachi decreased from 60-68% to 27-34% on the 5th day and was maintained at 23-25% after 5 days regardless of apple cultivar. The salinity of apple Jangachi increased from 0.94-1.64% to 3.5-3.8% after 15 day regardless of cultivar. In the sensory evaluation, apple Jangachi prepared with the Gala cultivar was given the best ratings in overall acceptability.