• Title/Summary/Keyword: United State

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Changes in Membrane Fatty Acid Composition during Entry of Vibrio vulnificus into the Viable But Nonculturable State

  • Day, Ashley P.;Oliver, James D.
    • Journal of Microbiology
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    • v.42 no.2
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    • pp.69-73
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    • 2004
  • Vibrio vulnificus, a Gram-negative bacterium found in estuarine waters, is responsible for over 95% of all seafood-related deaths in the United States. As a result of a temperature downshift to 5$^{\circ}C$, this organism enters the viable but nonculturable (VBNC) state. Changes in the membrane fatty acid (FA) composition of V. vulnificus may be a contributing factor to the ability of this organism to enter into and survive in the VBNC state. This hypothesis was tested by incubating the organism at 5$^{\circ}C$ in arti-ficial sea water and analyzing the cells' FAs during the initial hours of temperature and nutrient down-shift. Prior to downshift, the predominant FAs were 16:0, 16:1 and 18:0. During the first four hours of downshift, statistically significant changes occurred in 15:0, 16:1, 16:0, 17:0, and 18:0. These results indicate that changes in FA composition occur prior to entry of V. vulnificus into the VBNC state, suggesting that the ability to maintain membrane fluidity may be a factor in this physiological response. Cells in which fatty acid synthesis was inhibited did not survive, indicating that active fatty acid metab-olism is essential for entry of cells into the VBNC state.

Cluster Model of Multilingual Training of University Students: Theory and Practice of Engineering Education

  • Suvorova, Svetlana;Khilchenko, Tatyana;Gnatyshina, Elena;Uvarina, Natalia;Savchenkov, Alexey
    • International Journal of Computer Science & Network Security
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    • v.22 no.10
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    • pp.107-112
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    • 2022
  • Nowadays clusters are recognized as an important instrument for promoting industrial development, innovation, competitiveness and growth. An educational cluster is a set of interrelated vocational educational institutions of various levels that are united by industry with each other and are connected by partnership with industry enterprises. This article attempts to develop and describe cluster model of university students' multilingual training. The purpose of this study is to describe multilingual training of university students and their polycultural competencies formation and to define the process of multilingual training in form of a cluster. The authors consider clusters as an integral part of the educational campus within the concept framework of Shadrinsk State Pedagogical University. To determine the essence of the concept of a cluster model of university students' multilingual training, theoretical, empirical, observational, and diagnostic methods were implemented, such as a review of scientific literature, a compilation of best practices, observation, statistical methods, etc. The authors analyzed the programs of partner universities and organized international webinars and internships for bachelors and masters abroad and developed online courses "Foreign language for undergraduate students and masters". Experimental data obtained during the implementation of cluster training show the effectiveness of the formation of students' polycultural competencies.

A Comparative Study on Statistics Education Between Korea and USA

  • Kim, Sang-Lyong
    • Journal of the Korean Data and Information Science Society
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    • v.17 no.4
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    • pp.1107-1117
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    • 2006
  • In this thesis, we conduct a comprehensive analysis of the current situation and the inherent problems found in modern statistics education in Korea. We investigate the American probability and statistics curriculum currently used in Wisconsin and discuss the overall state of statistics education in The United States. Through comparison of both the Korean and Wisconsin model, we explore the future direction of statistical education.

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Aviation Accident Investigation Organization and Assistance to Aircraft Accident Victims and Their Families for Air Operation Accident (항공 사고 조사 기구와 항공운항사고 시 희생자 및 그 유가족 지원에 대하여)

  • Lee, Hak-Bong;Song, Byeong-Heum;Byeon, Sun-Cheol
    • 한국항공운항학회:학술대회논문집
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    • 2016.05a
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    • pp.95-98
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    • 2016
  • It is true that Aircraft accident investigation organization of Republic of Korea does not have independent role structurally and administratively. Also, in the event of an aviation accident it does not take the appropriate response and post-institutional measures for victims and their families support. With aware of this fact and to improvement this research paper present approach direction and suggestion of issues and implications for those by researching the operational practices of the United State's Victim Family support.

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SELF-ADJOINT CYCLICALLY COMPACT OPERATORS AND ITS APPLICATION

  • Kudaybergenov, Karimbergen;Mukhamedov, Farrukh
    • Bulletin of the Korean Mathematical Society
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    • v.54 no.2
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    • pp.679-686
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    • 2017
  • The present paper is devoted to self-adjoint cyclically compact operators on Hilbert-Kaplansky module over a ring of bounded measurable functions. The spectral theorem for such a class of operators is given. We use more simple and constructive method, which allowed to apply this result to compact operators relative to von Neumann algebras. Namely, a general form of compact operators relative to a type I von Neumann algebra is given.

The Status and Direction of State Implementation Plans to Improve Air Quality of the United States (미국 주 정부 실천계획의 현황 및 추진방향)

  • 신태주
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2000.04a
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    • pp.49-51
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    • 2000
  • 오존은 온도가 높고 태양 빛이 강한 여름철에 휘발성 유기화합물(Volatile Organic Compounds)과 질소화합물(NOx)의 광 화학 반응으로 생성되는 이차적 공해물질(Secondary Air Pollutant)이다. 성층권에 존재하는 오존은 피부암을 유발시키는 강한 자외선을 차단하고 흡수하는 고마운 존재이지만, 급속한 산업발달로 다량의 공해물질유출로 인해 생성된 지표면상의 오존은 대단히 유독해서 높은 농도에서 장시간 호흡 시 호흡기관의 장애는 물론이고 치사까지 이르게 하는 것으로 알려져 있다. (중략)

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Costumes, Commodities, and Culture : on Shaping Knowledge

  • Gwendolyn S, O′-Neal
    • The International Journal of Costume Culture
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    • v.5 no.1
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    • pp.67-72
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    • 2002
  • Consumer behavior is driven by culture; and culture is contextual. Therefore, human behaviors such as those exhibited in consumption behavior should not be measured and compared cross-culturally by using cultural specific mea-sures or paradigms which assume a universal reality, time and context free. Since it is known that consumption behavior is influenced by culture, and cultures in the United States differ from those in Korea, the assumption of universal ‘truths’ which can be known is inappropriate. To employ a paradigm with invalid assumptions automatically leads to the lack of validity, a must for truth claims in the positivist paradigm. Thus, 'truths' in the research reported must be suspect.

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INFLUENCE OF LOW OR HIGH ENDOTOXIN-SUSCEPTIBLE RABBIT ON PYROGEN TEST

  • Lee, Beom-Jun;Lee, Yong-Soon
    • Toxicological Research
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    • v.4 no.2
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    • pp.181-188
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    • 1988
  • This study was carried out to investigate whether the use of the high endotoxin-sensitive or the low endotoxin-sensitive rabbits (New Zealand White strain) are more suited for the pyrogen test regulated by the Korean Pharmacopeia and United State Pharmacopeia. The results obtained were as follows. 1. The ferbrile responese were increased according to increased endotoxin doses used (i.e., 0.1, 1, 5, 10ng/kg) and the febrile responses reached to its maximum between 90 mins and 120 mins after the intravenous injection of endotoxin.

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Estimation of critical speed and running performance for swing motion bogie of railway freight car (화물수송용 스윙모션보기의 임계속도와 주행성능 평가)

  • 함영삼;오택열
    • Journal of the Korean Society for Railway
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    • v.6 no.4
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    • pp.215-220
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    • 2003
  • In this paper the dynamic characteristics of a Swing Motion Bogie, such as a critical speed and a carbody vibration, are investigated in reply to the request of the Meridian Rail Corporation in the United States. Also described are experimental results of the maximum speed, the derailment coefficient, the lateral force, the vertical force, the vibration acceleration and steady state lateral acceleration measured from main line tests.