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Species Identification and Labeling Compliance Monitoring of Commercial Shrimp Products Sold in Online Markets of South Korea (국내 온라인 유통 새우 제품의 종판별 및 표시사항 모니터링 연구)

  • Kun Hee Kim;Ji Young Lee;Tae Sun Kang
    • Journal of Food Hygiene and Safety
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    • v.38 no.6
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    • pp.496-507
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    • 2023
  • This study investigated species identification and labeling compliance of 48 shrimp products sold in the Korean online markets. Species identification was conducted using the standard DNA barcoding method, using the cytochrome c oxidase subunit I gene. The obtained sequences were compared with those deposited in the NCBI GenBank and BOLD Systems databases. Additionally, phylogenetic analysis was performed to further verify the identified shrimp species. Consequently, 16 shrimp species were identified, including Penaeus vannamei, Pandalus borealis, Palaemon gravieri, Leptochela gracilis, Penaeus monodon, Pleoticus muelleri, Metapenaeopsis dalei, Euphausia pacifica, Lebbeus groenlandicus, Trachypenaeus curvirostris, Argis lar, Metanephrops thomsoni, Metapenaeopsis barbata, Alpheus japonicus, Penaeus chinensis, and Mierspenaeopsis hardwickii. The most prevalent species was Penaeus vannamei, found in 45.8% of the analyzed products. A significant mislabeling rate of 72.9% was found; however, upon excluding generic names such as shrimp, the mislabeling rate reduced to 10.4%. The mislabeling rate was higher in highly-processed products (89.3%) compared with that in minimally-processed products (50%). No correlation was found between the country of origin and mislabeling rate. The results of this study provide crucial data for future monitoring of shrimp products and improving the labeling of shrimp species in Korea.

The Universal Gestures in Nongŭm: The Dynamic Techniques of Taegŭm Performance (소통을 위한 몸짓 - 농음의 문화상호적 해석 -)

  • Kim, Hyelim
    • (The) Research of the performance art and culture
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    • no.33
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    • pp.223-242
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    • 2016
  • The Korean $taeg{\breve{u}}m$, a horizontal bamboo flute, is considered a representative wind instrument of Korean traditional music. Symbolized by its unique timbre and diverse techniques, this instrument transmits the beauty of Korea, and has become acknowledged even in international music scenes. Being a $taeg{\breve{u}}m$ player, composer, and ethnomusicology researcher, I have developed creative collaborations with musicians from Asian, electro-acoustic, jazz, and Western art music traditions developed outside my country of origin and tried to overcome musical boundaries through the 'intercultural performances' (after Turner 1988). Zooming in one collaboration, I detail the process of music creation and performance, collaborating with prominent Korean composer Kim $Taes{\breve{o}}ng$ (b.1967), who was commissioned by myself to write two compositions for the $taeg{\breve{u}}m$ and Western art music. The purpose is twofold: firstly, the modernization and appropriation of the Korean flute is briefly tracked down within the context of Western Art music. Secondly, a performance project is illustrated with the support of technical apparatuses such as DVD and CD recordings and delves further into the question of the 'cultural relativism' (Michael Tenzer, 2006: 7) through the interactive process. The performance-as-research, as a tool 'actualizing' (Richard Schechner 2003: 32) the hybridity, touches on critical domains in Ethnomusicology. The corresponding two parts discover, as Alan Merriam's(1964) 'tripartite model' suggests, the 'context' of Korean and Western cultures, the 'behaviour' of collaborating and performing and the 'sound' of improvised and composed productions in the course of music making.

Taste Compounds of Fresh-Water Fishes 9. Taste Compounds of Wild Loach Meat (담수어의 정미성분에 관한 연구 9. 천연산 미꾸라지의 정미성분)

  • YANG Syng-Taek;LEE Eung-Ho
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.17 no.3
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    • pp.177-183
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    • 1984
  • This study aims to find the taste compounds of wild loach, Misgurnis mizolepis, which is important fresh-water fish in this country. In order to elucidate the origin of the taste of wild loach meat, free amino acids, organic bases, nucleotides and their related compounds, organic acids, sugars and minerals were analyzed, and then followed by organoleptic test of synthetic extract prepared on the basis of the analytical data. Sensory evaluations of synthetic extracts prepared by omitting each extractive components were carried out by a triangle difference test, and changes in taste profile were assessed. In free amino acid composition, histidine, threonine, glycine, lysine, alanine were abundant. IMP and AMP were dominant in the wild loach in content. Total creatinine and butyric acid were abundant. As for the minerals, $Na^+,\;K^+,\;Cl^-\;and\;PO_4^{3-}$ were found to be the major ions. From the results of omission test of synthetic extracts the major components which contribute to produce the taste were arginine, glutamic acid, valine, aspartic acid, IMP, succinic acid, $Na^+,\;K^+,\;Ca^{2+}\;Mg^{2+}\;Cl^-\;and\;PO_4^{3-}$.

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An Analysis of Capital Market Shock Reaction Effects in OECD Countries (OECD 회원국들의 자본시장 충격반응도 분석)

  • Kim, Byoung Joon
    • International Area Studies Review
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    • v.22 no.4
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    • pp.3-18
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    • 2018
  • In this study, I examined capital market shock reaction effects of 29 OECD countries with the past 24 years sample period consisting of daily stock market return using T-GARCH model focused on volatility feedback hypothesis. US daily stock market return is used as a unique independent variable in this model in consideration of its characteristics of biggest market share and as an origin country of Global Financial Crisis. As a result, France, Finland, and Mexico in order are shown to be the strongest countries in the aspect of return spillovers from US. Canada, Mexico, and France are shown to be the highest countries in the aspect of explanatory power of model. The degrees of shock reaction are proved to be higher in order in Germany, Chile, Switzerland, and Denmark and those of downside shock reaction are seen higher in order in Greece, Great Britain, Australia, and Japan. Canada and Mexico belonging to NAFTA are shown to be higher in the return spillover from US and in the model explanatory power, but they are shown to be lower in the impact of shock reaction, suggesting that regional distance effect or gravity theory cannot be applied to financial spillovers any longer. In the analysis of subsample period of Global Financial Crisis, north American three countries do not show any consistent results as in the full sample period but shock reaction in the European countries are shown to record stronger, suggesting that shocks from US in the Crisis Times are transferred mainly to European region.

The Effects of Products Characteristics, Consumers Characteristics on Products Attitudes and Purchasing Intention of Import Agency Shopping Malls -Focused on the Moderating Effect of Perceived Risk- (수입대행쇼핑몰의 제품 특성과 소비자 특성이 제품태도 및 구매의도에 미치는 영향 -지각된 위험의 조절효과를 중심으로-)

  • Song, Sun-Yok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.1
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    • pp.340-348
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    • 2016
  • This study, through a review of advanced research, first, examined the attitudes to products traded in import agency shopping malls and the characteristic variables(product characteristic, customer characteristic) that influence the purchasing intention to understand influencing relationship. Second, the role of adjustment in the relationship between the attitude to the products and the purchasing intention was examined by putting the perceived risk to the moderating variables. Third, efficient controllable basic data in the characteristic variables capable of influencing the management of and import agency shopping mall based on the implications was obtained from the above research result. The 126 responses collected from a questionnaire were analyzed using the SPSS 23.0 statistics package, and the analysis result can be summarized as follows. First, the main cause that influences the attitude of treated products in an import agency shopping mall is the country of origin, national image, innovativeness and price perception, not the brand image. Second, the attitude of the products influences the purchasing intention of the import agency shopping mall. Third, the perceived risk partially plays a role as a moderating variable in the relationship between the attitude of products and the purchasing intention.

Monitoring of Artificial Radionuclides in Edible Mushrooms in Korea (식용 버섯류에서의 인공 방사능 농도 조사)

  • Cho, Han-Gil;Kim, Ji-eun;Lee, Sung-nam;Moon, Su-kyong;Park, Yong-Bae;Yoon, Mi-Hye
    • Journal of Food Hygiene and Safety
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    • v.33 no.6
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    • pp.488-494
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    • 2018
  • To ensure food-safety of mushrooms from radioactive contamination, edible mushroom samples distributed in Gyeonggi province in Korea were collected according to species and country of origin. A total of 284 mushrooms, belonging to 10 species (Lentinula edodes, Pleurotus ostreatus, Pleurotus eryngii, Agaricus bisporus, Flammulina velutipes, Phellinus linteus, Inonotus Obliquus (Chaga), Auricularia auricula-judae, Ganoderma lucidum and Tricholoma matsutake) were subjected to radioactivity testing. The concentration of artificial radionuclides, 131I, 134Cs, and 137Cs, was analyzed using gamma-ray spectrometry. 131I and 134Cs were not detected more than MDA value from all samples. Among 204 domestic mushrooms, however, 137Cs were detected in 0.21~2.58 Bq/kg from six cases (3 Lentinula edodes, 1 Ganoderma lucidum and 2 Tricholoma matsutake), whereas 137Cs were detected in 0.21~53.79 Bq/kg from 38 cases (22 Inonotus Obliquus(Chaga), 14 Phellinus linteus, 1 Lentinula edodes and 1 Tricholoma matsutake) among 80 imported mushrooms. In addition, average concentration of 137Cs in 10 Chaga mushroom-processed products was more than twice as much as dried Chaga mushroom, and maximum concentration was 123.79 Bq/kg. Results suggest that radioactivity monitoring system for imported mushrooms and mushroom-processed products should be continuously intensified to secure food-safety in Korea.

New Trend called 'Magic' and its aftereffects in 1920 (1920년대 마술의 유행과 그 여파)

  • Shin, Keun-young
    • (The) Research of the performance art and culture
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    • no.35
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    • pp.175-202
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    • 2017
  • In this article, I focused on the identity of the Japanese magician, Tenkatsu(天勝), who appeared in Exhibition of Joseon, 1915, and the social gaze and reverberation of them. I would like to see how Tenkatsu group appeared, how it was active, and how it was utilized. Because It was a big stimulus for traditional performing artists. 'Ma-sul' was a new word, taking the place of 'Hwan-sul(幻術)' or 'Hwan-hee'(幻?) for a term of english 'Magic'. In the various articles published during the Japanese colonial period, we can find the performers of the contemporary magic and the Korean artists who tried to make them nationalized. In the mid-1920s, a magician of Korean origin appeared. Kim Mun-phil(김문필), Park Chang-sun(박창순), Kim Wan-shil(김완실) were them. They had experience of studying abroad, such as Russia, and were also helped by religion, the Chondo-kyo. They attracted popularity while touring around the country. Incidents of social problems often arise by linking magic to a form of fraud, though. But the appearance of a Korean magician confirms the existence of a performer who actively engages in new performances.

A Study on the Resistance of Freezing-Thawing for the Material of Concrete or Asphalt Using Smashed Rock (쇄석을 이용한 콘크리트 및 아스팔트용 재료의 동결융해 저항성)

  • Kim, Young-Su;Bang, In-Ho;Heo, No-Young;Lee, Jea-Ho;Choi, Jeong-Ho
    • Journal of the Korean GEO-environmental Society
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    • v.3 no.2
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    • pp.35-47
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    • 2002
  • Soil and rock were yielded during construction of subway in Taegu. Produced rock is a kind of a sedimentary rock with low strength and low durability of shrinkage. So it is difficult using for resources engineering. But in our country, it is very important to use material resources due to lack of natural resources. In this study, after cracking sedimentary rock like black shale and red shale, they are compared with granite which usually used road constriction field to investigate property of use for road construction. Consequently, the engineering character of origin rock is satisfactory, but the soundness test, black shale and red shale are less than KS 12.9%, 37.5% respectively. The result of concrete freezing-thawing test shows that the strength among three materials is not a wide difference but red shale has relatively low strength. The result of asphalt freezing-thawing test with 50 cycles indicates that the stability of red shale in lower than KS 484~561kg on base course, 336~375kg on surface course respectively. A further research should be needed for propriety to the material of shale.

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Study on Influential Factors in Relation to Multicultural Acceptance : Focused on mediating effects of multicultual education (다문화 수용성에 영향을 미치는 요인에 관한 연구: 다문화 교육의 조절효과를 중심으로)

  • Lee, Kang-Mo;Ha, Kyu-Soo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.4
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    • pp.2465-2477
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    • 2015
  • The number of emigrants along with globalization and internationalization is rapidly increasing. The international migration is creating a new form of acculturation and a new structure of society. Racial or cultural diversity resulting from political, economical, and cultural exchange is drastically increasing. This study aimed to provide policy plans or basic data to improve multicultural acceptability in the future. Accordingly, it was also to set and verify causal effect of multicultural acceptability. For those purposes, a questionnaire was made up based on the literature about acculturation, and a survey was taken in korean. The results are as follows. Dependant variables used in analysis were sub-factors of multicultural acceptability founding three types called 'The Actual Acceptance', 'The Active Acceptance', 'The Passive Acceptance'. It was found that positive effect in multicultural acceptability through media experience was an important factor to reduce discriminant of multicultural community members. Therefore, we need to produce diverse media programs that can improve multicultural acceptability and reduce negative perception of multicultural community members. Additionally, multiculture education to help understanding of other races and other cultures should be developed as subject courses in university.

An Educational Needs Analysis of Home Economics Teachers for Food Literacy Education in Secondary School Home Economics (중등 가정과 푸드리터러시 함양 식생활교육에 대한 가정과 교사의 교육 요구도 분석)

  • Song, Yunmi;Lee, Kyung Won
    • Journal of Korean Home Economics Education Association
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    • v.35 no.2
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    • pp.41-59
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    • 2023
  • This study aimed at analyzing the educational needs of home economics teachers for food literacy cultivation education in secondary school home economics. A total of 192 home economics teachers were surveyed about their perceptions of importance and performance of food literacy education content categories and elements, and their priorities were identified. Among the 38 content elements presented, home economics teachers recognized that the current performance level was significantly lower than that of the importance over 34 content elements. Based on the Borich educational needs assessment and the Locus for Focus Model, we identified five content elements with 'very high' educational needs ('food security/food sovereignty', 'reducing food-related waste', 'food waste management and recycling', 'food-related waste recycling', and 'country of origin information'), and four content elements with 'high' educational needs ('genetically modified food', 'ethical food consumption', 'food additives', and 'eco-friendly agricultural products'). These results indicate that dietary education in secondary school home economics should emphasize both the production and disposal of food. The findings of this study suggest implications for the needs for a new dietary education in secondary school home economics that allows students to learn all stages of food system. These results can also be used as a basis for dietary education for cultivating food literacy in secondary school home economics education.