• Title/Summary/Keyword: Science and Technology (S&T)

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Complete genome sequence of Spirosoma rigui KCTC 12531T, a bacterium isolated from fresh water from the Woopo wetland for taxonomic study (계통분류학적 연구를 위한 우포늪에서 분리된 박테리아 Spirosoma rigui KCTC 12531T의 완전한 게놈 서열)

  • Kim, Dong-Uk;Kim, Ju-Young;Kim, Su Jeong;Kim, Min Ji;Lee, Ju Yeon;Kim, Myung Kyum
    • Korean Journal of Microbiology
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    • v.53 no.3
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    • pp.227-229
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    • 2017
  • Spirosoma rigui KCTC $12531^T$ was isolated from fresh water from the Woopo wetland, Korea. In this study, we report the complete genome sequence of a bacterium Spirosoma rigui KCTC $12531^T$, its complete genome sequence was obtained using the PacBio RS II platform. The genome comprised of 5,828,404 bp with the G + C content of 54.4%, the genome included 4,774 genes were predicted, among them, 4,647 genes are protein-coding genes.

Complete genome sequence of Spirosoma aerolatum KACC 17939T, a bacterium related to the DNA repair (DNA 복원에 관련된 박테리아 Spirosoma aerolatum KACC 17939T의 완전한 게놈 서열)

  • Kim, Dong-Uk;Kim, Ju-Young;Kim, Su Jeong;Kim, Min Ji;Lee, Ju Yeon;Kim, Myung Kyum
    • Korean Journal of Microbiology
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    • v.53 no.3
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    • pp.230-232
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    • 2017
  • A Gram-stain-negative, yellow-pigmented bacterial strain, designated Spirosoma aerolatum KACC $17939^T$, was isolated from a biofilm of car air conditioner collected in Republic of Korea. In this study, we report the complete genome sequence of a bacterium Spirosoma aerolatum KACC $17939^T$ obtained using the PacBio RS II platform. The genome comprised of 7,959,595 bp with the G + C content of 48.3%, the genome included 6,640 genes were predicted, among them, 6,471 genes are protein-coding genes.

A Study on Improving The Outputs of International Cooperation in Science and Technology: the Case of International S&T Cooperation Programs of the Ministry of Education, Science and Technology (MEST) (과학기술 국제협력 성과제고에 관한 연구 -교육과학기술부의 과학기술국제화사업을 중심으로-)

  • Kim, Young-In;Lee, Byung-Min
    • Journal of Korea Technology Innovation Society
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    • v.12 no.3
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    • pp.545-563
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    • 2009
  • In an era of global competition, international cooperation in science and technology plays a key role in determining a nation's competitiveness. In fact, without international cooperation, it is almost impossible to keep in touch with the fast-changing technology. In regard to this, the Korean government put much efforts into building a strong base for global R&D networking. As a result, the environment for international cooperation has improved a lot. However, the outputs of international cooperation are still poor and fall short of expectations. With the importance of international cooperation in science and technology rising more and more, it is meaningful to examine the current situation of international cooperation in S&T and analyse the outputs of the cooperation activities to review our past and present international cooperation activities. Therefore, this paper focuses on analyzing the outputs of the MEST's international S&T cooperation programs in various ways and recommends ways to improve the outputs of the international cooperation in science and technology.

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The Office of Science and Technology Innovation and its Implications for Policy Coordination (과학기술혁신본부와 정책조정 방식 변화)

  • 김성수
    • Journal of Technology Innovation
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    • v.13 no.3
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    • pp.153-173
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    • 2005
  • The Office of Science and Technology Innovation (OSTI) was created by a different method of organizational change from that of precedent administrative reforms. According to results of the new method, the OSTI case can be widely applied to other ministries as an alternative model for governmental reform. The theory part introduced two approaches of organizational reform, namely structural approach which focuses on the level of hierarchial authority and process approach which emphasizes the flow of information/expertise in organizational operation. It also discussed various ways of understanding for S&T policy coordination. After this, the paper reviewed details of the OSTI reform with special reference to implications for the mode of S&T policy coordination. It concludes that the OSTI may offer an opportunity to strengthen the coordination mechanism of the process approach.

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IL-17A Secreted by Th17 Cells Is Essential for the Host against Streptococcus agalactiae Infections

  • Chen, Jing;Yang, Siyu;Li, Wanyu;Yu, Wei;Fan, Zhaowei;Wang, Mengyao;Feng, Zhenyue;Tong, Chunyu;Song, Baifen;Ma, Jinzhu;Cui, Yudong
    • Journal of Microbiology and Biotechnology
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    • v.31 no.5
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    • pp.667-675
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    • 2021
  • Streptococcus agalactiae is an important bacterial pathogen and causative agent of diseases including neonatal sepsis and meningitis, as well as infections in healthy adults and pregnant women. Although antibiotic treatments effectively relieve symptoms, the emergence and transmission of multidrug-resistant strains indicate the need for an effective immunotherapy. Effector T helper (Th) 17 cells are a relatively newly discovered subpopulation of helper CD4+ T lymphocytes, and which, by expressing interleukin (IL)-17A, play crucial roles in host defenses against a variety of pathogens, including bacteria and viruses. However, whether S. agalactiae infection can induce the differentiation of CD4+ T cells into Th17 cells, and whether IL-17A can play an effective role against S. agalactiae infections, are still unclear. In this study, we analyzed the responses of CD4+ T cells and their defensive effects after S. agalactiae infection. The results showed that S. agalactiae infection induces not only the formation of Th1 cells expressing interferon (IFN)-γ, but also the differentiation of mouse splenic CD4+ T cells into Th17 cells, which highly express IL-17A. In addition, the bacterial load of S. agalactiae was significantly increased and decreased in organs as determined by antibody neutralization and IL-17A addition experiments, respectively. The results confirmed that IL-17A is required by the host to defend against S. agalactiae and that it plays an important role in effectively eliminating S. agalactiae. Our findings therefore prompt us to adopt effective methods to regulate the expression of IL-17A as a potent strategy for the prevention and treatment of S. agalactiae infection.

A Study on the Reform of Korean S&T Related Law (과학기술관계법제의 정비방안 연구)

  • 송종국;오준근
    • Journal of Technology Innovation
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    • v.2 no.1
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    • pp.142-169
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    • 1994
  • Korean Government has established a lot of S&T laws to promote National Science and Technology since established the Ministry of S&T and the S&T Promotion Law in 1967. There are more than ninties of S&T related laws to support Government's S&T policies recently. Even though Korean Government has enacted plenty of S&T related laws are required to be reformed. In this paper, firstly, we define what is S&T related law and the relationship between S&T related law system. Secondly, we investigate the problems of S&T related law with respect to several aspects such as historical, executing, international environment, and systematic aspects. Finally, we suggest the directions of S&T law reform. We conclude that S&T laws need to be merged and abolished in some areas such as various council system and S&T incentive system especially related to UR restriction.

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남북한 과학기술협력의 새로운 방향: 지역 혁신체제론의 시각에서

  • 정선양
    • Journal of Technology Innovation
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    • v.9 no.2
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    • pp.77-97
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    • 2001
  • The 21st century is not only the knowledge-based society but also the unifie era for Korea. It implies that Korea should prepare for the unification, especially in the area of knowledge, science, and technology. Under this background, this paper deals with how we can prepare for the unification of South and North Korea in science and technology (S&T) area. There have been no sufficient theoretical studies in this area. This paper, therefore, argues that regional innovation system, which has been developed since the beginning of the 1990s, could be effectively applied to the S&T cooperation and unification between both Koreas. It argues that regional innovation systems can formulate sectoral innovation systems effectively, which lead to a competent national innovation system. According to this study, South and North Korean regions have complementary sectoral innovation systems that could effectively cooperate with each other. Such S&T cooperation could make a great contribution to the S&T integration between two Koreas in the future. This paper argues, therefore, that S&T cooperation between two Koreas should target the unification of South and North Korean regional innovation systems. This paper names it as the unified national innovation system.

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Control of Galvanic Corrosion Between A516Gr.55 Steel and AA7075T6 Depending on NaCl Concentration and Solution Temperature

  • Hur, S.Y.;Jeon, J.M.;Kim, K.T.;Kim, Y.S.
    • Corrosion Science and Technology
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    • v.19 no.6
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    • pp.281-287
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    • 2020
  • Chloride ion is one of the most important corrosive agents in atmospheric corrosion, especially in marine environments. It has high adsorption rate and increases the conductivity of electrolytes. Since chloride ions affect the protective properties and the surface composition of the corrosion product, they increase the corrosion rate. A low level of chloride ions leads to uniform corrosion, whereas a high level of chloride ions may induce localized corrosion. However, higher solution temperatures tend to increase the corrosion rate by enhancing the migration of oxygen in the solution. This work focused on the effect of NaCl concentration and temperature on galvanic corrosion between A516Gr.55 carbon steel and AA7075T6 aluminum alloys. When AA7075T6 aluminum alloy was galvanically coupled to A516Gr.55 carbon steel, AA7075T6 was severely corroded regardless of NaCl concentration and solution temperature, unlike the corrosion properties of single specimen. The combined effect of surface treatment involving carbon steel and aluminum alloy on corrosion behavior was also discussed.

Building Science, Technology, and Research Capacity in Developing Countries: Evidence from student mobility and international cooperation between Korea and Guatemala

  • Bonilla, Kleinsy;Salles-Filho, Sergio;Bin, Adriana
    • STI Policy Review
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    • v.9 no.1
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    • pp.99-132
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    • 2018
  • Developing countries face numerous challenges in the process of building science, technology, and research capacity; in particular, the formation and accumulation of skilled S&T workforce. The lack of organized and sustainable higher education options (Master and Doctoral programs), nonexistent or low-quality academic programs, and the absence of research-oriented study options are some of the strong contributors for talented students to emigrate to developed countries. At the same time, the consolidation of a global knowledge economy, the internationalization of higher education, and the competition to attract foreign talent in industrialized countries present challenges for underdeveloped nations to retain their already scarce skilled human resources. In this context, student mobility has been used as a policy mechanism to cope with S&T workforce shortages in S&T laggard nations. It has also enabled opportunities for international cooperation to play a key role. While significant literature has been devoted to studying the gains of developed nations with the arrival and potential migration of the mobilized students, few scholarly inquiries have addressed the benefits and losses experienced by their countries of origin. More importantly, limited research can be found on policy options and policy implications for developing countries to deal with the dilemmas presented by the brain-drain/brain-circulation debate. The goal of this article is to study empirical evidence of an international cooperation initiative for student mobility between the Republic of Korea and Guatemala (implemented during 2009-2015). The paper analyzes this particular international cooperation experience from the perspective of the different actors involved and attempts to draw policy implications and policy options for developing countries to deal with potential risks and gains derived from international mobility for their S&T capacity building.

Use of Blockchain to Support the Security of Internet of Things: A Review

  • Saher Un Nisa;Maryam Khalid
    • International Journal of Computer Science & Network Security
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    • v.23 no.7
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    • pp.149-154
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    • 2023
  • Internet of Things (IoT) is now spreading everywhere. It's the technology of every person's need so we can't step back from IoT but we can secure it as it is spreading quickly so it has greater chances of danger and being misused. There is an urgent need to make IoT devices secure from getting cracked or hacked. A lot of methods had tried and still trying to mitigate IoT security issues. In this paper Blockchain is going to be the solution of most of the IoT issues or problems. We have discussed or highlighted security issues with centralized IoT and then provided solution of such security challenges through the use of blockchain because is based on a decentralized technology that is hard to modify or update.