• Title/Summary/Keyword: EUGENE

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Molecular biological approaches to study the function and regulation of citrate synthase genes in saccharomyces cerevisiae

  • Kim, Kwang-Soo;Rosankranz, Mark;Guarente, Leonard
    • The Microorganisms and Industry
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    • v.12 no.2
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    • pp.30-35
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    • 1986
  • Almost all of the aerobic organisms contain citric acid cycle (or, tricarboxylic acid cycle). This cycle is involved both in energy metabolism and biosynthetic reactions; generation of NADH which derives the synthesis of chemical energy, ATP, and provision of intermediates needed for the biosynthesis. Because of its importance in the cellular metabolism, the regulation of the TCA cycle and its component enzymes has been extensively studied by many biologists (7,28). Citrate synthase is resposible for the initial step of the cycle and has been recognized as the rate limiting step (14,121,26). Understanding of the mechanism of the expression of citrate synthase should be a key step for the elucidation of the regulation of the TCA cycle in the cell metabolism.

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Mother-Child Interaction in Storybook Reading and Children's Narrative Competence (그림책 읽기에서 유아와 어머니의 언어적 상호작용 전략과 유아의 이야기 구성능력)

  • Han, Eugene;Yoo, An Jin
    • Korean Journal of Child Studies
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    • v.22 no.1
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    • pp.147-162
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    • 2001
  • This study examined the relation between mother-child verbal interaction strategies and children's narrative competence. Forty-eight 4-year-old middle class children(25 girls and 23 boys) and their mothers were observed in their homes. All the children were asked to produce a new story. Mothers used more descriptive statements and questions, more inferential questions and more evaluative questions than children. Children gave more answers and used more negative feedback than mothers. Mother's use of high-mental demanded question and positive feedback strategies were positively correlated with children's level of narrative structure. Mothers' use of inferential and evaluative questions were positively correlated with narrative length. Children's use of high-mental demanded statements and positive feedback strategies were positively correlated with their level of narrative structure and their use of descriptive and high-mental demanded strategies were positively correlated with narrative length.

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TREATMENT OF CLASS II DIVISION 1 MALOCCLUSION WITH L-ARS(LIGATED ANTERIOR REPOSITIONING SPLINT) (L-ARS를 이용한 Cl II div. 1 부정교합의 치험례)

  • Kim, Jong-Chul;Williamson, Eugene H.
    • The korean journal of orthodontics
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    • v.23 no.4 s.43
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    • pp.447-454
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    • 1993
  • Patient with skeletal class II relationship was treated with L-ARS. L-ARS is fixed functional appliance that could be effective in children and adolescent patient who don't wear activator. The following results were obtained ; 1) Growth of Mandible was stimulated and overjet was decreased, therefore coupling of anterior teeth was established with L-ARS which is fixed functional appliance. 2) These changes were accomplished with Mandibular skeletal growth with no effect on the Maxilla. 3) L-ARS was especially effective on patient who deny to wear the removable functional appliance.

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Multilingual Automatic Translation Based on UNL: A Case Study for the Vietnamese Language

  • Thuyen, Phan Thi Le;Hung, Vo Trung
    • IEIE Transactions on Smart Processing and Computing
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    • v.5 no.2
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    • pp.77-84
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    • 2016
  • In the field of natural language processing, Universal Networking Language (UNL) has been used by various researchers as an inter-lingual approach to automatic machine translation. The UNL system consists of two main components, namely, EnConverter for converting text from a source language to UNL, and DeConverter for converting from UNL to a target language. Currently, many projects are researching how to apply UNL to different languages. In this paper, we introduce the tools that are UNL's applications and discuss how to reuse them to encode a Vietnamese sentence into UNL expressions and decode UNL expressions into a Vietnamese sentence. The testing was done with about 1,000 Vietnamese sentences (a dictionary that includes 4573 entries and 3161 rules). In addition, we compare the proportion of sentences translated based on a direct method (Google Translator) and another one based on UNL.

Operative Treatment of Stenosing Tenosynovitis of the Peroneus Longus Tendon Associated with Hypertrophy of the Peroneal Tubercle: A Case Report - 1 Case (비대 비골 결절에 의한 장비골건의 협착성 비골건염의 수술적 치료: 증례 보고-1예)

  • Park, Se-Jin;Jeong, Hwa-Jae;Kim, Eugene;Lee, Jae-Wook
    • Journal of Korean Foot and Ankle Society
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    • v.17 no.2
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    • pp.150-153
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    • 2013
  • An enlarged peroneal tubercle causes lateral ankle and foot pain, and which is a cause for stenosing peroneal tenosynovitis. In this report, we present a case of stenosing tenosynovitis of the peroneus longus tendon associated with hypertrophy of the peroneal tubercle without involvement of the peroneus brevis tendon. Surgical excision of the enlarged peroneal tubercle along with exploration of the peroneal tendons was successful.

Latest passenger vehicle fire trend and case study based on field investigation data (차량화재 사고경향 및 사례분석)

  • Shin, Junho;Won, Eugene;Hong, Ilmin
    • Journal of Auto-vehicle Safety Association
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    • v.6 no.2
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    • pp.67-71
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    • 2014
  • Based on the analysis of the actual passenger vehicle fire cases for recent four years (2010~2013), the passenger vehicle fire is increasing annually. Main root cause was analyzed as an electric problem as a 39%. Vehicle fire case by electric problem was mainly caused by use of Non-genuine part. Vehicle fire case by mechanical problem was mainly caused by various oil system maintenance. Vehicle fire case by smoking material was mainly caused by cigarette and disposal lighter. And external fire transition issue and towing mistake fire cases was also confirmed.

Route Optimization Scheme for Mobile Content Sources in Content Centric Networking

  • Lee, Jihoon;Rhee, Eugene
    • Journal of information and communication convergence engineering
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    • v.18 no.1
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    • pp.22-27
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    • 2020
  • Content centric networking (CCN) is regarded as promising internet architecture because it can provide network efficiency in terms of bandwidth consumption by separating contents from a specific network location and decrease network congestion events. However, the application of a CCN does not widely consider the side effects of mobile devices, particularly mobile content sources. For content source mobility, a full routing update is required. Therefore, in this study, a route optimization scheme is proposed for mobile content sources in a CCN environment to provide low communication overhead, short download time, and low resource consumption. The proposed scheme establishes a direct path between content requesters and a mobile content source for the exchange of interest and data packets using interest-piggybacked data packets. Based on the inherent CCN naming characteristics, the content source does not know the name prefix of the content consumer, and thus the proposed optimized CCN scheme utilizes the content router in the home domain of the content source.

Production of Cellulosic Ethanol in Saccharomyces cerevisiae Heterologous Expressing Clostridium thermocellum Endoglucanase and Saccharomycopsis fibuligera β-glucosidase Genes

  • Jeon, Eugene;Hyeon, Jeong-eun;Suh, Dong Jin;Suh, Young-Woong;Kim, Seoung Wook;Song, Kwang Ho;Han, Sung Ok
    • Molecules and Cells
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    • v.28 no.4
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    • pp.369-373
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    • 2009
  • Heterologous secretory expression of endoglucanase E (Clostridium thermocellum) and ${\beta}$-glucosidase 1 (Saccharomycopsis fibuligera) was achieved in Saccharomyces cerevisiae fermentation cultures as an ${\alpha}$-mating factor signal peptide fusion, based on the native enzyme coding sequence. Ethanol production depends on simultaneous saccharification of cellulose to glucose and fermentation of glucose to ethanol by a recombinant yeast strain as a microbial biocatalyst. Recombinant yeast strain expressing endoglucanase and ${\beta}$-glucosidase was able to produce ethanol from ${\beta}$-glucan, CMC and acid swollen cellulose. This indicates that the resultant yeast strain of this study acts efficiently as a whole cell biocatalyst.

Screening of Taxol-producing Endophytic Fungi from Ginkgo biloba and Taxus cuspidata in Korea

  • Kim, Soo-Un;Strobel, Gary;Ford, Eugene
    • Journal of Applied Biological Chemistry
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    • v.42 no.2
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    • pp.97-99
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    • 1999
  • Endophytic fungi from Ginkgo biloba and Taxus cuspidata in Korea were screened for production of taxol. Eighteen and twelve fungal isolates from G. biloba and T. cuspidata, respectively, were shown to produce immunologically detectable amount of taxol. The highest production of taxol at 260 ng/l was achieved by stationary culture of an Alternaria isolate from G. biloba. The strain also produced unidentified antifungal agent(s) against Pythium ultimum. However, the activity gradually decreased when the strain was stored at $4^{\circ}C$ for 6 months.

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Study of Influence Factors for Prediction of Ground Subsidence Risk

  • Park, Jin Young;Jang, Eugene;Ihm, Myeong Hyeok
    • Journal of Korean Society of Disaster and Security
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    • v.10 no.1
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    • pp.29-34
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    • 2017
  • This Analyzed case study of measuring displacement, implemented laboratory investigation, and in-situ testing in order to interpret ground subsidence risk rating by excavation work. Since geological features of each country are different, it is necessary to objectify or classify quantitatively ground subsidence risk evaluation in accordance with Korean ground character. Induced main factor that could be evaluated and used to predicted ground subsidence risk through literature investigation and analysis study on research trend related to the ground subsidence. Major factors of ground subsidence might be classified by geological features as overburden, boundary surface of ground, soil, rock and water. These factors affect each other differently in accordance with type of ground that's classified soil, rock, or complex. Then rock could be classified including limestone element or not, also in case of the latter it might be classified whether brittle shear zone or not.