• Title/Summary/Keyword: 생명

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Effect of Artificial Noise from Offshore Wind Power Generation on Immunological Parameters in Rock Bream (Oplegnathus fasciatus) (돌돔(Oplegnathus fasciatus)에 대한 인위적인 해상풍력발전소 건설소음의 면역학적 영향)

  • Choi, Kwang-Min;Joo, Min-Soo;Kang, Gyoungsik;Woo, Won-Sik;Kim, Kyung Ho;Son, Min-Young;Jeong, Son Ha;Park, Chan-Il
    • Journal of fish pathology
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    • v.34 no.2
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    • pp.243-248
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    • 2021
  • Offshore wind power generation is an energy generation field that is rapidly developing owing to the increasing demand for clean energy. However, the physiological response of fish to the underwater noise generated during construction or operation of wind turbines is unclear. We confirmed the effects of sound pressures of 125, 135, 145, and 155 dB/µPa, including 140 dB/µPa (the standard sound pressure for noise damage recognition in South Korea), through serum analysis in rock bream (Oplegnathus fasciatus). High mortality induced by reduced immunity through artificial infection after stimulation was confirmed. These results suggest that rock bream is negatively affected by the noise generated during the construction of offshore wind power plants.

Properties of Photo-Reactive Natural Polymer Derivatives and Its Applications (광반응성 천연 고분자의 특성 및 생체재료로의 활용 방안)

  • Kim, Eun-Hye;Jeong, Jin-Hong;Han, Ga-Dug;Son, Tae-Il
    • Prospectives of Industrial Chemistry
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    • v.18 no.4
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    • pp.1-9
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    • 2015
  • 최근 신체의 손상된 조직 및 세포를 재생하기 위해 약물 전달이 가능한 생체재료에 관한 연구가 활발히 이루어지고 있다. 이러한 생체재료 개발을 위해 생체적합하며 생분해성이 뛰어난 천연고분자가 큰 각광을 받고 있다. 기존의 약물 전달을 위한 고정화 방법은 화학적 가교가 널리 이용되어 왔으나, 이 방법의 여러 단점들이 보고된 바 있다. 이러한 단점을 극복하기 위해 광반응성 천연고분자를 이용한 약물광고정화 방법이 연구되어 왔다. 본 글에서는 광고정화를 위해 합성되는 여러 광반응성 천연고분자의 종류 및 특성과 생체재료로써의 활용 방안을 소개하고자 한다.

Science News Frame: A Study of Longitudinal Framing Analysis for Biotechnology (과학뉴스(Science News)연구: 생명공학 뉴스의 장기적인 보도경향연구)

  • Kweon, Sang-Hee
    • Korean journal of communication and information
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    • v.32
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    • pp.7-48
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    • 2006
  • The study explores how Korea's major newspaper cover about science news, especially how newspaper frame biotechnology news including new source, news construction ways, coverage trend. The research has a research design to find out coverage pattern or model with frame theory. The result shows that the newspaper has some aspect of frame through out the biotechnology development in the section, theme, source, complexity. The section has been expend to the society and international section, while the theme shift from disease or cancer cure to life itself, genome, or stem cell. In the complexity, the biotechnology news stories have been developed a story plot (event-problem-development-solution). In the climax, the news coverage focuses on the explanation of biotechnology news.

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Artificial Life Art : Research on Artificial Life Artworks of VIDA (인공생명 예술의 특성 : VIDA의 작품 분석을 중심으로)

  • Lim, Kyung-Ho;Yoon, Joon-Sung
    • The Journal of the Korea Contents Association
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    • v.11 no.1
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    • pp.193-201
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    • 2011
  • In this study, we consider the evolved interactivity at the Artificial Life Art beyond 'open interactivity' as 'closed relationship' between viewer/participant and artwork by immersive and interactive features of digital media art. In order to consider this evolved interactivity, we survey the theory of artificial life of which result of many studies like biology and computational science. And then we analysed characteristics related artistic context of artificial life at the autonomy and emergent behavior of artificial life. Especially, we research the artworks of interaction with ecologies and of living in outside(not in- silico) among the artworks of officially adopting an artificial life arts in 'VIDA : Art and Artificial Life International Awards'. And we are going to understand the relationship of emotional subjects between viewer/participant and artwork, and a step further to understand the diverse relationship of symbiosis and co-evolution of the technology and human.

A Comparative Analysis of Bioinformation Website Services (생명정보 분야 웹사이트 서비스에 대한 비교.분석에 관한 연구)

  • Ahn, Bu-Young;Lee, Eung-Bong
    • Journal of Information Management
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    • v.40 no.1
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    • pp.157-181
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    • 2009
  • As the information technology is evolved and the human genome project is finalized over the world, the Bioinformatics - the integration of abundant Biological science and information technology - has shown up and is continuously being advanced. Together with the evolution of Bioinformatics, the websites dealing with Bioinformation have been set up to provide relevant information to the Bioscientists. Among the numerous global websites, the preferred websites by the majority of domestic Bioscientists are BRIC (Biological Research Information Center) of POSTECH(Pohang University of Science and Technology) in Korea, CCBB(Center for Computational Biology and Bioinformatics) of KISTI(Korea Institute of Science and Technology Information), KOBIC(Korean Bioinformation Center) of KRIBB(Korea Research Institute of Bioscience and Biotechnology), NCBI(National Center for Biotechnology Information) in USA, EBI(European Bioinformatics Institute) in Europe and DDBJ(DNA Data Bank of Japan) in Japan. In this paper, the comparative analysis was executed by investigating contents status and functions of the above-mentioned 6 websites. In addition, questionnaire survey of Bioscience Researchers' utilization status and their needs to those 6 websites was conducted.

A Study of the Theoretical Ethics Approach to Bioethics - Based on the ethics of Singer, Kant, and Aristotle - (생명윤리에 대한 이론 윤리학 탐구 - 싱어, 칸트, 아리스토텔레스 윤리학을 중심으로 -)

  • Kwak, Young-kuen
    • Journal of Korean Philosophical Society
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    • v.146
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    • pp.1-24
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    • 2018
  • The purpose of this paper is to explore the meaning of theoretical ethics regarding bioethics. First, I explore the meanings and limitations of the bioethics domain for 'the principle of equal consideration of interests' and the 'preference utilitarianism' concepts Singer presents. Secondly, I emphasize the significance of Kant's ethics in the domain of bioethics. Lastly, I suggest that Aristotle's virtue ethics should be realized in the domain of bioethics. Furthermore, I would like to suggest the meaning of human life through this. Singer's argument brings up a new topic about the meaning of evolved life not considered in the history of traditional ethics. He presented undeniable opinions about human dignity that he took for granted. In addition, it is assessed that the scope extension for the life respect target has been reasonably achieved. Contrary to this, Kant's ethics explains the meaning of human dignity based on its metaphysical meaning. Furthermore, it provides an appropriate orientation for human life. Embracing their claims is not sufficient to explain the meaning of Good Life. The meaning of Good Life is likely to be resolved through the application of Aristotle's virtue ethics. The meaning of a being of substance is living and furthermore, it is inherent to being itself.

Complete genome sequence of Microbacterium aurum strain KACC 15219T, a carbohydrate-degrading bacterium (탄수화물 분해 세균 Microbacterium aurum KACC 15219T의 유전체 염기서열 해독)

  • Jung, YeonGyun;Jung, Byung Kwon;Park, Chang Eon;Ibal, Jerald Conrad;Kim, Sang-Jun;Shin, Jae-Ho
    • Korean Journal of Microbiology
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    • v.55 no.2
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    • pp.164-166
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    • 2019
  • The complete genomic information of Microbacterium aurum KACC $15219^T$ (= IFO $15204^T$ = DSM $8600^T$) is described. The genome of M. aurum KACC $15219^T$ contains 3,096 protein coding genes and an average G+C content of 69.9% in its chromosome (3.42 Mbp). This strain can use various carbon sources for growth, including quinic acid. Quinic acid is used as a substrate for the synthesis of aromatic amino acids via the shikimate pathway which are useful in the industry. M. aurum KACC $15219^T$ will provide basis to improve our understanding of this organism and allow more efficient application of the strain to industry.

Complete genome sequence of Lactobacillus koreensis 26-25, a ginsenoside converting bacterium, isolated from Korean kimchi (김치에서 분리한 진세노사이드 전환 능력이 있는 Lactobacillus koreensis 26-25의 유전체 서열 분석)

  • Kim, Ju-Hyeon;Liu, Qing-Mei;Srinivasan, Sathiyaraj;Kim, Myung Kyum;Kim, Sang Yong;Wee, Ji-Hyang;Im, Wan-Taek
    • Korean Journal of Microbiology
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    • v.54 no.4
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    • pp.477-479
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    • 2018
  • A Gram-positive, rod-shaped, ivory colored, and motile, Lactobacillus koreensis 26-25 was isolated from Korean kimchi. Strain 26-25 showed the ability of conversion from major ginsenosides into minor ginsenosides for which whole genome was sequenced. The whole genome sequence of Lactobacillus koreensis 26-25 consisted of one circular chromosome comprised of 3,006,812 bp, with a DNA G + C content of 49.23%. The whole genome analysis of strain 26-25 showed many glycosides hydrolase genes, which may contribute to identify the genes responsible for transformation of major ginsenosides into minor ginsenosides for its high pharmacological effects.

Complete genome sequence of Niabella ginsenosidivorans BS26T, a ginsenoside-converting bacterium, isolated from compost (퇴비에서 분리한 진세노사이드 전환능력이 있는 Niabella ginsenosidivorans BS26T 의 유전체 서열 분석)

  • Lee, Young-Woo;Siddiqi, Muhammad Zubair;Liu, Qing-Mei;Kim, Dae-Cheol;Im, Wan-Taek
    • Korean Journal of Microbiology
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    • v.54 no.4
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    • pp.465-467
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    • 2018
  • An orange-colored, rod-shaped strain, designated Niabella ginsenosidivorans $BS26^T$, was isolated from compost. Strain $BS26^T$ showed the ability to convert major ginsenosides to minor ginsenosides, and its whole genome was sequenced. The whole genome of N. ginsenosidivorans $BS26^T$ consists of a single circular chromosome of 5,627,734 bp with 44.48% G + C content. Based on the complete genome sequence of strain $BS26^T$, we found several glycosides hydrolase-encoding genes that might involve in the conversion of major ginsenosides into minor ginsenoside and deliberate its strong pharmacological effects.

Enhanced DPPH Radical Scavenging Activity of Lactobacillus plantarum K-21 Isolated from Kimchi and its Various Antioxidant Effects (김치유래 Lactobacillus plantarum K-21의 DPPH 라디칼 제거활성 증진 및 다양한 항산화 효과)

  • Kim, Yerin;Kim, Yedam;Jeon, Chae-Min;Park, Gyulim;Lee, O-Mi;Son, Hong-Joo
    • Journal of Environmental Science International
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    • v.31 no.8
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    • pp.715-725
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    • 2022
  • Lactic Acid Bacteria (LAB) are among the representative probiotics that have been used for a long time in fermented food. Although there are many studies on detecting the radical scavenging activity of LAB, few studies have been conducted on the environmental factors that improve scavenging activity. This study investigated the environmental factors affecting the DPPH radical scavenging and various antioxidant activities of Kimchi-derived Lactobacillus plantarum K-21 with antihypertensive and radical scavenging activities. The optimal conditions for scavenging DPPH radicals were glucose 2%, bactopeptone 0.5%, Tween 80 0.05%, L-cysteine 0.05%, and an initial pH 6.5 at 35℃. Under optimal conditions, the DPPH radical scavenging activity was 94.8±2.2%, which was 1.5 times higher than that of the basic medium. In addition, L. plantarum K-21 had other antioxidant activities; ABTS radical scavenging (93.6±1.5%), hydroxyl radical scavenging (8.5±0.9%), metal chelating (65.9±0.5%), NO scavenging (53.1±19%), SOD-like (25.1±1.5%), and reducing power (11.7±1.4%) activities were detected. Therefore, L. plantarum K-21 may act not only as a starter for lactic acid-fermented foods with improved functionality but also as a drug for various diseases caused by oxidative stress.