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Current Status and Characteristics of Highly Pathogenic Avian Influenza (고병원성 가금인플루엔자의 최근 발생동향과 질병 특성)

  • Kim, J.H.;Sung, H.W.;Kwon, Y.K.;Lee, Y.J.;Choi, J.G.;Cho, S.J.;Kim, M.C.;Lee, E.K.;Jang, H.;Wee, S.H.;Mo, I.P.;Song, C.S.;Park, J.M.
    • Korean Journal of Poultry Science
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    • v.31 no.2
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    • pp.119-128
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    • 2004
  • Highly Pathogenic Avian Influenza (HPAI) is a very acute systemic disease in poultry, particularly in chickens and turkeys caused by HPAI viruses. An outbreak of HPAI caused by subtype H5N1, was first reported in a broiler breeder farm on December 10, 2003 in Korea, although there had been twenty one outbreaks of the disease reported in the world before. Since mid-December 2003, eight Asian countries have confirmed outbreaks of HPAI due to the same subtype. The outbreak has also resulted in at least twenty three fatal human cases in Vietnam and Thailand as of May 17, 2004 according to the WHO. Regarding the first outbreak of recent Asian HPAI, it has been suspected that some Asian countries with the exception of Korea and Japan veiled the fact of HPAI outbreaks since the last half of 2003, even though it was first reported in Korea. There have been total nineteen outbreaks of HPAI among chicken and duck farms in 10 provinces in Korea since Dec. 2003 and approximately 5,280,000 birds were slaughtered from 392 farms for eradication of the disease and preemptive culling. The origin of the H5Nl HPAI virus introduced into the country are unknown and still under epidemiological investigation. Current status of outbreaks and characteristics of HPAI will be reviewed and discussed on the basis of genetic, virological, clinicopathological, and ecological aspect, as well as future measures for surveillance and prevention of the disease in Korea.

Characterization of intrinsic molecular structure spectral profiles of feedstocks and co-products from canola bio-oil processing: impacted by source origin

  • Alessandra M.R.C.B., de Oliveira;Peiqiang, Yu
    • Animal Bioscience
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    • v.36 no.2
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    • pp.256-263
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    • 2023
  • Objective: Feed molecular structures can affect its availability to gastrointestinal enzymes which impact its digestibility and absorption. The molecular spectroscopy-attenuated total reflectance Fourier transform infrared vibrational spectroscopy (ATR-FTIR) is an advanced technique that measures the absorbance of chemical functional groups on the infrared region so that we can identify and quantify molecules and functional groups in a feed. The program aimed to reveal the association of intrinsic molecular structure with nutrient supply to animals from canola feedstocks and co-products from bio-oil processing. The objective of this study was to characterize special intrinsic carbohydrate and protein-related molecular structure spectral profiles of feedstock and co-products (meal and pellets) from bio-oil processing from two source origins: Canada (CA) and China (CH). Methods: The samples of feedstock and co-products were obtained from five different companies in each country arranged by the Canola Council of Canada (CCC). The molecular structure spectral features were analyzed using advanced vibrational molecular spectroscopy-ATR-FTIR. The spectral features that accessed included: i) protein-related spectral features (Amide I, Amide II, α-helix, β-sheet, and their spectral intensity ratios), ii) carbohydrate-related spectral features (TC1, TC2, TC3, TC4, CEC, STC1, STC2, STC3, STC4, TC, and their spectral intensity ratios). Results: The results showed that significant differences were observed on all vibrationally spectral features related to total carbohydrates, structural carbohydrates, and cellulosic compounds (p<0.05), except spectral features of TC2 and STC1 (p>0.05) of co-products, where CH meals presented higher peaks of these structures than CA. Similarly, it was for the carbohydrate-related molecular structure of canola seeds where the difference between CA and CH occurred except for STC3 height, CEC and STC areas (p>0.05). The protein-related molecular structures were similar for the canola seeds from both countries. However, CH meals presented higher peaks of amide I, α-helix, and β-sheet heights, α-helix:β-sheet ratio, total amide and amide I areas (p<0.05). Conclusion: The principal component analysis was able to explain over 90% of the variabilities in the carbohydrate and protein structures although it was not able to separate the samples from the two countries, indicating feedstock and coproducts interrelationship between CH and CA.

Analysis of Anatomical Characteristics for Wood Species Identification of Commercial Plywood in Korea (국내 유통 합판의 수종식별을 위한 해부학적 특성 분석)

  • LEE, Hyun Mi;JEON, Woo Seok;LEE, Jei Wan
    • Journal of the Korean Wood Science and Technology
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    • v.49 no.6
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    • pp.574-590
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    • 2021
  • International efforts to prevent illegally logged wood are expanding around the world. The "Legal Wood Trade Promotion System" was enacted in Korea in 2019 to strengthen the legal import and distribution of commercial wood in Korea. Since then, this system has promoted and ensured that the imported wood and wood products are legal with respect to the country of origin, wood species, and harvested area. As verification methods, DNA analysis technology and anatomical analysis using a microscope are mainly used in conjunction. Therefore, in this study, wood species of plywood were identified by analyzing the anatomical characteristics of various wood products for the first time. Douglas fir (Pseudotsuga menziesii (Mirb.) Franco.) and larch (Larix kaempferi (Lamb.) Carriere) plywoods (7, 9 ply) were obtained from four companies that supply plywood in Korea. After cutting each company's plywood to a size of about 1 cm3, the layers from top to bottom were separated into single layers, and three sections were observed using an optical microscope. The results revealed that the plywood was composed of a mixture of softwood and hardwood wood species, pine wood species, poplar wood species, or a mixture of larch and pine wood species. Identification of wood species using microscopy is important and can enable the scientific analysis and verification of various wood products, including plywood, imported from countries where the likelihood of indiscriminate distribution of illegal wood and illegal logging is high.

Different Perception on Product Attributes of HMR: Focusing on College Students and Consumers (가정간편식의 제품속성에 대한 인식차이: 대학생들과 소비자를 중심으로)

  • Yang, Hoe-Chang;Kim, Jong-Baek;Kim, An-Sik
    • Journal of Distribution Science
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    • v.14 no.2
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    • pp.47-56
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    • 2016
  • Purpose - The purpose of this study is to investigate the difference in the degree of significance and satisfaction perceived by college students and ordinary consumers on the HMR product attributes. Comparison of the difference on HMR product attributes between ordinary consumers and college students who belong to the current and future consumption groups of HMR will provide information for clear marketing strategies and PR on target consumers from the aspects of companies. Also, overall difference on HMR was investigated through IPA(importance-performance analysis) on significance and satisfaction with each product attribute. This result will provide information to food companies that produce or supply HMR products to be supplemented and improved. Finally, IPA was conducted between groups on product attribute to find which difference exists between groups. This result is also expected to provide crucial information to companies as suggested in the first purpose. Research design, data, and methodology - The procedure of analysis is as follows. First, independent sample t-test was conducted on the significance and satisfaction on HMR product attributes. Second, with using IPA, the significance and satisfaction on HMR product attributes of the respondents were checked to investigate marketing strategy direction on overall HRM products. Third, the difference between generations was verified using IPA on the college student and consumer groups. According to this result, the direction of marketing strategy on HRM products was to be proposed to food companies. Results - It was known that consumers consider HMR product attributes statistically and significantly such as nutrient content(nutrition), country of origin, brand, main raw material, packaging, and awareness of manufacturer. They keep after purchase more importantly than college students who considered only volume and price than consumers. In comparison with the difference in satisfaction on HMR product attributes, the college student group was more satisfied than ordinary consumers only in flavor, condition of food additives, and volume. Also, HMR related food companies must maintain taste, cooking method, manufacturing date, expiration date, and safety on current products continuously. Finally, as a result of analysis from the groups, the attributes such as cooking method, manufacturing date, expiration date, and safety were considered significantly with high achievement by the two groups. It was known that college students considered food texture to be important, but consumers considered storage method to be important after purchasing it. Conclusions - There is necessity to differentiate effectiveness of products when releasing HMR products subject to consumers and college students. The result will give great assistance to the improvement of companies, produce or supply HMR products. It will also provide entry strategies on target groups of companies that are planning for entry. The factors that consumers commonly considered not to be significant were brand, package form(appearance), cooking time, and sale(purchase) location, which were found in the comparison with the groups that awareness about manufacturers and storage method after purchase corresponded to college students and that distribution route corresponded to ordinary consumers.

A Study on the Introduction of Green IT Based on the Cases of Implementing Green Internet Data Center (그린 데이터센터 구축 사례에 기반한 그린 IT 도입 방안에 관한 연구)

  • Song, Gil-Heon;Shin, Taek-Soo
    • Information Systems Review
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    • v.11 no.2
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    • pp.147-167
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    • 2009
  • As global climate changes, the interest in environmental crisis is increasing and a number of international agreements and regulations against this crisis are being established. Global information technology(IT) corporations are building their own pro-environmental green IT strategies to cope with the regulatory measures. Green IT broadly refers to pro-environmental technologies designed to replace hazardous materials, maximize energy effectivity, and find alternative energies. In the current stage of the IT industry development, Green IT specifically refers to the technologies that deal with the server heat generation and the energy reduction in data center. This study defines the concept of Green IT and reviews its origin and necessity. Then, it examines the issues regarding Green IT industry in Korea as well as other countries and compares the Green IT strategies developed in each country. Reviewing the recent development of IT and data center market enables us to see that overall Green IT strategies focus on the establishment of Green Internet Data Centers. Therefore, this study analyzes the cases in which some domestic and foreign corporations introduced Green Data Centers in order to examine the protocol and legal requirements for building Green IT, the aspects of environmental evaluation and design, and specific strategies for launching Green IT strategies and its future assignments. The conclusions of this study are as follows. First, to introduce Green Data Center as a strategy to build Green IT, the government and corporations should cooperate with each other. Partial introduction at the initial stage is desirable because, through the process, mutual trust between the two parties can be built more smoothly. Second, CEO's determination to build Green IT and continue its operation is indispensable. CEO's are required to have clear understanding as to why Green IT needs to be built and how it should be constructed. Those who initiate the construction of Green Data Center for Green IT need to know the definition and necessity of Green IT while at the same time understanding the implicit meanings of Green IT. They also need to be aware of future-oriented values of Green Data Center and readjust their corporate business activities in the pro-environmental direction. Finally, not only the CEOs' pro-environmental activities but also the change of mind on the part of all corporate employees is required to realize Green IT. It should be remembered that pro-environmental Green IT starts with minor activities.

How is it possible to use the human body material for research without the written consent of the donor? (바이오뱅크 내 동의서 없는 폐기용 인체유래물 자원의 재활용을 위한 정당성 모색)

  • JEONG, Chang Rok;HEO, Eusun
    • The Korean Society of Law and Medicine
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    • v.18 no.1
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    • pp.199-235
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    • 2017
  • A topic of particular interest for biotech researchers are handling of human tissue specimens that may be used for present, or stored for future, research purposes. This article examines the ethical and legal legitimacy of using human materials for research purposes with special attention to the issues of informed consent and confidentiality. The purpose of this paper is moral and for law legitimacy exploring of the utilization of the human material without donator's consent. It is a known fact that future medical care should be exchanged a paradigm by preventive health care through a human meterial research. The developed country have established a biobank for a human meterial research and supported a researcher. Korea is the same, too. When it is done a defect, as for the thing researcher derived from the Korean human meterial research. The written consent of the donator can keep a human meterial research origin thing, but cannot use it now. I will justify morally and for law that researcher can use the human material without written consent. We can change the concept of recycling of human material. It is not mean only burning that recycling of human materials for research.

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Effect of Resveratrol on Wine Sensory Evaluation Preference Analysis (Resveratrol이 포도주의 관능평가에 미치는 영향)

  • Kim, Tae-Hee;Yi, Dong-Heui;Kim, Hyung-Joo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.38 no.12
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    • pp.1740-1745
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    • 2009
  • In this study, effect of resveratrol concentration on wine taste was investigated. Content of resveratrol in 14 different wines were quantified using HPLC. The resveratrol concentrations in the Australian wine samples (grape species: Syrah) with 3 vintage years were analyzed and different concentrations of resveratrol were observed (2.89-3.84 mg/L). Variation in wine grape species with the same wine manufacturer (Chile, 2006) and variation in different manufacturing country of origin with same wine grape species (Cabernet Sauvignon, 2006) also produced the variations in resveratrol concentration. The preference analysis (color, aroma, taste,astringency and overall acceptability) of the sample wines were determined by 15 panelists using 5-point hedonic scale. When the analysis results of the resveratrol concentrations in the sample wines were compared with the preference analysis of sample wines, the resveratrol concentration in the wine produced the positive effects in the wine preference analysis in the factors of aroma, taste and color.

Species Identification and Monitoring of Labeling Compliance for Commercial Pufferfish Products Sold in Korean On-line Markets (국내 온라인 유통 복어 제품의 종판별 및 표시사항 모니터링 연구)

  • Ji Young Lee;Kun Hee Kim;Tae Sun Kang
    • Journal of Food Hygiene and Safety
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    • v.38 no.6
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    • pp.464-475
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    • 2023
  • In this study, based on an analysis of two DNA barcode markers (cytochrome c oxidase subunit I and cytochrome b genes), we performed species identification and monitored labeling compliance for 50 commercial pufferfish products sold in on-line markets in Korea. Using these barcode sequences as a query for species identification and phylogenetic analysis, we screened the GenBank database. A total of seven pufferfish species (Takifugu chinensis, T. pseudommus, T. xanthopterus, T. alboplumbeus, T. porphyreus, T. vermicularis, and Lagocephalus cheesemanii) were identified and we detected 35 products (70%) that were non-compliant with the corresponding label information. Moreover, the labels on 12 commercial products contained only the general common name (i.e., pufferfish), although not the scientific or Korean names for the 21 edible pufferfish species. Furthermore, the proportion of mislabeled highly processed products (n = 9, 81.8%) was higher than that of simply processed products (n = 26, 66.7%). With respect to the country of origin, the percentage of mislabeled Chinese products (n = 8, 80%) was higher than that of Korean products (n = 26, 66.7%). In addition, the market and dialect names of different pufferfish species were labeled only as Jolbok or Milbok, whereas two non-edible pufferfish species (T. vermicularis and T. pseudommus) were used in six commercial pufferfish products described as JolboK and Gumbok on their labels, which could be attributable to the complex classification system used for pufferfish. These monitoring results highlight the necessity to develop genetic methods that can be used to identify the 21 edible pufferfish species, as well as the need for regulatory monitoring of commercial pufferfish products.

Ethnocentrism and Taiwanese Consumer's Preference and Consumption Behaviors on Dried Persimmon (자민족중심주의에 따른 대만소비자의 곶감선호도와 소비행태 분석)

  • You, So-Ye;Park, Myung-Eun;Park, Jaehong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.11
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    • pp.252-262
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    • 2017
  • In recent years, there has been a growing need for measuring consumer demand in overseas markets in order to increase the sales of Korean dried persimmons. The country of origin of products is associated with consumer ethnocentrism and has become one of the important factors for explaining consumer demand in overseas markets. The purpose of this study was to analyze the Taiwanese consumers' preferences and consumption behaviors concerning dried persimmon based on ethnocentrism. Results found no significant differences in the consumer awareness of imported dried persimmons according to the level of ethnocentrism. The perception and preference of Korean dried persimmons were statistically significant in terms of satisfaction, taste, color, safety, packaging, and hardness by level of ethnocentrism. The factors affecting Taiwanese consumer's preference of Korean dried persimmon were found to be the satisfaction of Korean dried persimmon. Age was the most influential factor in the purchase experience of Korean dried persimmon. This implies that it would be necessary to increase consumer awareness of Korean dried persimmons by targeting the segmented market and promoting marketing strategy in the Taiwan market for securing sales channels and generating profit.

Art Design for a Mobile Phone Using Chinese Traditional Elements (중국 전통 요소를 활용한 모바일폰의 아트 디자인 연구)

  • Xu, Miao-Miao;Eune, Ju-Hyun
    • Journal of the HCI Society of Korea
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    • v.3 no.1
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    • pp.39-47
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    • 2008
  • A mobile phone became the practical necessities of Chinese life that can not be explained without a mobile phone as it is rapidly popularized in China in recent years. As income increases due to economic growth, so did desire to buy better products. And This desire has made consumers in China more concerned about design and consequently leads to artistic design of a mobile phone. And also this trend is getting linked to people's personalisation in that people prefer rather to choose products they like than standardized ones in the middle of a variety of cultural inflows. This study mainly focuses on the development of the characterized mobile phone with a high class brand by use of traditional elements and of design identity of a mobile phone with Chines style that is well harmonized with cultural and personalized identity as consumers' preferences are quite different from each other depending on each country's culture. For this, this study investigates traditional elements such as patterns, colors and characters as well as development and features of the mobile phone design. This will also lead to the development of a mobile phone with traditional elements of China by studying utilization of design with traditional patterns. To do this, the study analyzes to research traditional patterns(Dragon, Phoenix, Peony, Lotus Flower), colors(Red, Yellow, Blue, Black, White) and historical origin and concept of characters. The study also looks into instances and personalisation of mobile phone design by analyzing literatures.

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