• 수산해양교육연구
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• 제19권2호
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• pp.180-196
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• 2007

This study aims at analyzing the potential of leports-fishing for improving fishing household income. Leports-fishing is a composite concept which is combined with those of leisure, sports and fishing. Korean on-shore resources have also a composite characteristic. The properties of the east, west and south coastal waters are quite different in geography, biology and ecology. There is a array of leports-fishing development potentials of utilizing their characteristics. At present, angling forms a main activity of leports-fishing, but coastal seas would be an emerging space for the public. In order for them to be a ground of fun, enjoyment and festivals, it would be necessary to supply a wide range of activities and facilities including angling, scuba diving, fish barbecue, ecological experience, fishing experience, cruise, and so forth. As seen in the survey results, the participants have strong desire for fun and enjoyment through leports-fishing activities. The proportion of people participating in one or two times a year amounts to 40 percent. Most coastal places visited are close to medium/large cities and two-days leports-fishing/tourism accounts for some 77 percent. However, it turned out that conflicts between leports-fishing participants and fishermen are not serious. The results of expenditure function estimation appear that the elasticity of per capita income is very high with 1.2660 and that there are negative relationships between leports-fishing expenditure and transportation/food/lodging costs. Assuming the annual national economic growth rate of 4 percent, it is anticipated that Korean leports-fishing population will increase to 3.18 million in 2010 and 4.07 million in 2015. Korean leports-fishing market potential in 2015, which is calculated based on per capita expenditure on leports-fishing, appears to amount to 1,400 billion won~1,600 billion won. The contribution of such market potential to the fishing households is expected to be 62.3~74.2 percent(934.5 billion won~111.3 billion won).

• Journal of Medicine and Life Science
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• 제16권3호
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• pp.84-89
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• 2019

Docosahexaenoic acid (DHA), a principal of mackerel-derived fermented fish oil, increases the proliferation of dermal papilla cells (DPCs) via the upregulation of cell cycle-associated proteins such as cyclin D1 and cdc2 p34, and might promote hair-growth. However, the intracellular mechanisms that underlie the action of DHA in the proliferation of DPCs have not been investigated fully. In this study, we addressed the action mechanisms of DHA to trigger the activation of anagen in DPCs. DHA activated β-catenin signaling by the increased phosphorylation at serine 552 and serine 675 as well as the translocation and accumulation of activated β-catenin into the nucleus. In the other hand, DHA inhibited canonical TGF-β/Smad signaling by the decreased phosphorylation of Smad2/3. Taken together, the results indicate that DHA might stimulate anagen signaling via the activation of Wnt/β-catenin pathway, while the inactivation of canonical TGF-β signaling pathway in DPCs.

• 디지털융복합연구
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• 제18권8호
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• pp.391-399
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• 2020

2011년부터 입지를 넓혀간 국내 극장용 애니메이션은 그 성장세와는 별개로 미성년층만을 대상으로 한다는 고정관념과 사회 및 철학적 의제를 다루는 대중 예술적 표현 장르로 적합하지 않다는 인식의 한계가 남아있다. 영화<파닥파닥>은 횟집이라는 한정된 공간 속에서 사회계층, 삶과 죽음이라는 철학적 의제를 각 물고기의 성격과 배경 그리고 애니메이션만의 연출 방식으로 표출하면서 그 한계를 뛰어넘는 사례다. 낙관적으로 그려지는 전통적 애니메이션 전개에서 벗어나, 캐릭터들의 노력에도 불구하고 구조적 모순에서 벗어날 수 없는 서사와 물고기 캐릭터임에 가능한 보다 비극적인 장면들로 현 사회의 문제점을 비판한다. 또한, 드로잉 기법 뮤지컬로 캐릭터의 이념과 태도를 표현하며 삶과 죽음 앞에 사회가 취해야 할 자세를 고찰하게 한다. 본 논문의 목적은 이대희 감독의 애니메이션 <파닥파닥(2012)>을 분석하여 국내 극장용 애니메이션의 장르적 확장성에 대한 가능성을 제시하는 것에 있다.

• 대한본초학회지
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• 제20권3호
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• pp.83-92
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• 2005

Objectives : The physiological activities of Coptidis Rhizoma investigated for application as a cosmetic ingredients. Methods : We were experimented anti-oxidation effect, growth inhibition ability on cancer cells, antibacterial activity on various kinds of bacteria of skin. Results : The results were obtained as follows : Electron-donating ability(EDA) shows that Coptidis Rhizoma extracted with ethanol(94.51%) gives higher EDA in comparison to that extracted with water in 1000 ppm(63.24%). In the test of SOD-like activity, ethanol extract showed quite more activity with 81.01% in 1000 ppm, while water extract was low in 18.22%. In the inhibition activity of Xathine oxidase, ethanol extract showed higher inhibition activity compared to water extract. In measuring lipid oxidation inhibition ability using fish oil, ethanol extract in 100 ppm showed prominent ability. In the oxidation inhibition effect added with $Cu^{2+}\;ion\;and\;Fe^{2+}$ ion as a oxidation promoter, ethanol extract in 1000 ppm, each in the proportion of 90% and 92%, showed high oxidation inhibition effect compared with water extract. Conclusions : The results indicated that, ethanol extract which is superior in its anti-oxidation and antibacterial effect is useful to be applied in cosmetic industry.

• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 2017년도 추계학술발표회
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• pp.236-236
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• 2017

Effluent treated by an NaDCC injection method in Ballast water management system (BWMS) contains reactive chlorine species and disinfection by-products (DBPs). In this study, we conducted whole effluent toxicity (WET) testing and ecological risk assessment (ERA) to investigate its ecotoxicological effects on marine environment. WET testing was carried out for four marine pelagic and freshwater organisms, i.e., diatom Skeletonema costatum, Navicula pellicuosa, chlorophyta Dunaliella tertiolecta, Pseudokirchneriella subcapitata, rotifer Brachionus plicatilis, Brachionus calyciflorus and fish Cyprinodon variegatus, Pimephales promelas. The biological toxicity test revealed that algae was the only biota that showed apparent toxicity to the effluent; it showed no observed effect concentration (NOEC), lowest observable effect concentration (LOEC) and effect concentration of 50% (EC50) values of 25-50%, 50-100% and >100%, respectively, at three water condition, but did not show any significant toxicities on other biota. Meanwhile, chemical analysis revealed that the BWMS effluent contained total residual oxidants (TROs) below $0.03{\mu}g/L$ and a total of 25 DBPs such as bromate, volatile halogenated organic compounds (VOCs), halogenated acetonitriles (HANs), halogenated acetic acids (HAAs), chloropicrin and Isocyanuric acid. Based on ERA, the 25 DBPs were not considered to have persistency, bioaccumulation and toxicity (PBT) properties. The ratio of predicted environmental concentration (PEC) to predicted no effect concentration (PNEC) of the other DBPs did not exceed 1 for General harbor environment. However, four substances (Isocyanuric acid, Tribromomethane, Chloropicrin and Monochloroacetic acid) were exceed 1 for Nearship environment. But observed toxicity in the test water on algal growth inhibition would be mitigated by normal dilution factor of 5 applied for nearship exposure. Thus, our results of WET testing and ERA showed that the BWMS effluent treated by NaDCC injection method would have no adverse impacts on marine environment.

• 한국식품저장유통학회지
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• 제15권1호
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• pp.139-143
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• 2008

김치의 맛을 증진시키기 위하여 젓갈 대신에 된장을 첨가하여 김치의 품질 특성을 개선하고자 하였다. 김치 제조원료에 된장을 첨가하여 김치를 제조한 후 28일간 $10^{\circ}C$에서 숙성시키면서 김치의 이화학적, 미생물학적 변화 그리고 기호성을 검사하였다. 된장 첨가량의 증가에 따른 pH 변화는 전 발효 기간 동안 된장 첨가구는 대조구에 비해 다소 낮은 경향을 나타내었다. 산도의 변화는 발효 초기 유사하였으며, 발효가 진행될수록 대조구에 비해 된장 첨가 김치의 산도의 변화가 완만한 증가 현상을 나타내 pH 변화와 유사하였다. 유산균수와 총균수는 대조구, 첨가구 모두 대조구에 비해 성장이 억제되었다. 색도는 대조구에 비해 된장 첨가구 모두 백색두 적색도, 황색도가 감소하였다. 관능적 특성은 대조구에 비해 된장 5% 첨가 김치가 맛은 물론, 풍미, 색상, 종합적 기호도가 유의적으로 높게 나타났다. 이상의 결과로 미루어보아 된장을 첨가 김치 제조가 가능할 것으로 판단되었다.

• 대한환경공학회지
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• 제39권2호
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• pp.59-65
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• 2017

본 연구에서는 식품과 화장품 재료로 다양하게 이용되는 천연다당류의 특성인 분자구조, 분자량, 점성, 친수성, 팽윤 및 습윤/보습 등을 이용하여 $PM_{10}$에 대한 먼지 억제제를 제조하였고 Lab과 Field Test를 통하여 다양한 먼지 제어 효과를 확인하였으며 대조군인 물에 의한 단순 살수와 합성 PVA보다 우수한 결과를 도출하였다. 또한, 수분 증발 비교, 배추씨 발아와 배추 생장 비교실험(Pot Test), 물고기와 수생식물에 대한 영향 및 허브 식물 성장에 대한 영향 등의 토양 및 수질 시험 등을 통하여 토양과 수질에서의 안전성 등을 연구하여 Polysaccharides를 이용한 $PM_{10}$ 먼지 억제제의 이용 가능성을 확인할 수 있었다.

• 한국수산과학회지
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• 제36권1호
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• pp.65-67
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• 2003

Flounder (Paralichthys olivaceus) fish goes through metamorphosis in the larvae phase. In this phase, it secretes much thyroid hormone to control metamorphosis. Sharp change in the environment and nutrition deficiency may cause stress in the metamorphosis phase. It leads to interfering with the development of thyroid hormone and finally inhibits the normal growth of larvae. In this study, the correlation between the change in thyroid hormones and the albinism appearance was examined by growing them with low temperature ($13^{\circ}C$) stress over the premetamorphosis stages (stage $D\~F$) of flounder metamorphosis. Albinism rate was $15\%$ in the low temperature group and $25\%$ in the control goup. $T_{4}\;and\;T_{3}$ of the control group tended to increase from stage F as larvae grew. $T_{4}$ increased 2 times compared to the control group as 72 ng/g at stage H, the increasing phae of water temperature, in the low temperature group. $T_{3}$ increased 8 times compared to the control group as 2.9 ng/g at stage E, the decreasing phase of water temperature. Therefore, it is judged that the albinism appearance of flouner is caused from the sharp increase in $T_{3}$ by the inappropriate secretion of thyroid hormone.

• 한국산학기술학회논문지
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• 제15권2호
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• pp.1010-1019
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• 2014

본 연구는 객관적인 국가차원의 국민건강영양조사 원시자료를 활용하여 만 14세에서 만 19세까지의 청소년을 추출하고 식품군별로 조사된 섭취빈도조사의 내용을 바탕으로 구강검진 조사의 항목으로 실시된 우식영구치수, 영구치우식유병자여부, 우식경험영구치수, 영구치우식경험여부등의 4가지 항목의 영향력 관계를 조사하였다. 우식영구치수, 영구치우식유병자 여부, 우식경험영구치 수, 영구치우식경험 여부등은 쌀과 배추 김치를 주식으로 하는 우리나라 식생활 문화에 가장 영향을 많이 받았고 쌀과 잡곡, 배추등의 채소와 과일류 등은 치아우식을 낮추는 영향을 주는 인자로 조사되었다. 쌀의 섭취 빈도가 많을수록 치아우식은 감소하는 것으로 나타났으며, 고기 생선 난류의 식품군에서는 멸치의 섭취 빈도가 많을 수록 치아우식은 감소하였고, 돼지고기와 소고기 등의 육류의 섭취 역시 치아우식의 발생을 감소시키는 것으로 나타났다. 특히 탄산음료와 패스트푸드 식품의 일종인 햄버거와 피자등의 섭취 빈도가 클수록 치아우식을 증가시키는 것으로 나타났다.

• Journal of Nutrition and Health
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• 제30권5호
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• pp.478-488
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• 1997

Omega-3 fatty acid, docosahexaenoic acid(DHA) is found in a high proportion in the structural lipids of cell membranes, in particular those of the central nervous system and the retina. Diet-induced changes in fatty acid composition in these tissues may affect physiochemical functions. This study was conducted to investigate whether supplements of DHA in infant formula has an effect on the composition of fatty acids in erythrocytes with regard to brain development. Experimental groups were breastmilk group(n=21), placebo formula group(n=15), and DHA supplemented formula (0.26%) group(n=16). Infants were selected by mothers who deliverecdd at Kyung Hee medical center from February to April, 1996. Infant body weight, length, and head circumference were similar among the experimental groups at 16 weeks of age. The levels of DHA in breastmilk, placebo formula, and DHA supplemented formula were 0.56, 0, and 0.26% of total fatty acids, respectively. There was a significant correlation between dietary DHA intake and erythrocyte DHA levels. The levels of arachidonic acid did not differ among the three expermental groups. The result of flash visual evoke potential(VEP) test was correlated with the erythrocyte levels and dietary DHA levels at 16 weeks of age. No other fatty acid was correlated with VEP test results. No differences were found in Bayley Mental and Psychomotor Development Index scores among the three groups at 20 weeks of age. DHA seems to be an essential nutrient for optimum growth and maturation of term infants. Relatively small amounts of dietary DHA supplementation significantly elevate DHA supplementation significantly elevate DHA content in erythrocytes, which in turn has an implication for better scores for infant's VEP test. Whether supplementation of formula-fed infants with DHA has long-term benefits remains to be elucidated.