• Title/Summary/Keyword: Yea-Won

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Kinesin Superfamily KIF5 Proteins Bind to ${\beta}III$ Spectrin

  • Paik, Jae-Eun;Kim, Na-Ri;Yea, Sung-Su;Jang, Won-Hee;Chung, Joon-Young;Lee, Sang-Kyoung;Park, Yeong-Hong;Han, Jin;Seog, Dae-Hyun
    • The Korean Journal of Physiology and Pharmacology
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    • v.8 no.3
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    • pp.167-172
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    • 2004
  • The kinesin proteins (KIFs) make up a large superfamily of molecular motors that transport cargo such as vesicles, protein complexes, and organelles. KIF5 is a heterotetrameric motor that conveys vesicles and plays an important role in neuronal function. Here, we used the yeast two-hybrid system to identify the neuronal protein(s) that interacts with the tail region of KIF5 and found a specific interaction with ${\beta}III$ spectrin. The amino acid residues between 1394 and 1774 of ${\beta}III$ spectrin were required for the interaction with KIF5C. ${\beta}III$ spectrin also bound to the tail region of neuronal KIF5A and ubiquitous KIF5B but not to other kinesin family members in the yeast two-hybrid assay. In addition, these proteins showed specific interactions, confirmed by GST pull-down assay and co-immunoprecipitation. ${\beta}III$ spectrin interacted with GST-KIF5 fusion proteins, but not with GST alone. An antibody to ${\beta}III$ spectrin specifically co-immunoprecipitated KIF5s associated with ${\beta}III$ spectrin from mouse brain extracts. These results suggest that KTF5 motor proteins transport vesicles or organelles that are coated with ${\beta}III$ spectrin.

Phylogenetic Analysis of Culturable Arctic Bacteria

  • Lee, Yoo-Kyung;Kim, Hyo-Won;Cho, Kyeung-Hee;Kang, Sung-Ho;Lee, Hong-Kum;Kim, Yea-Dong
    • Ocean and Polar Research
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    • v.26 no.1
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    • pp.51-58
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    • 2004
  • We isolated and identified culturable Arctic bacteria that had inhabited soils around the Korean Arctic Research Station Dasan located at Ny-Alsund, Svalbard, Norway $(79^{\circ}N,\;12^{\circ}E)$. The collected soils were diluted in distilled water; the diluted soil-water was spread on 3M petri-films at Dasan Station. The petri-films were transported to the laboratory at KORDI, and cultured at $4^{\circ}C$. Colonies grown on the petri-films were subsequently cultured on nutrient agar plates at $4^{\circ}C$ every 7 days. The pure colonies were inoculated into nutrient liquid media, genomic DNA was extracted, and phylogenetic analysis was performed on the basis of 165 rDNA sequences. A total of 227 strains of bacteria were isolated. Among them, 16S rDNA sequences of 185 strains were identical with those of known strains isolated in this study, and 42 strains were finally identified. Phylogenetic analysis using 16S rDNA indicated that the 30 strains belonged to Pseudomonas, 7 strains to Arthrobacter, two strains to Flavobacterium, and the remaining to Achromobacter, Pedobacter, and Psychrobacter. Among the 42 strains, 14 bacteria produced protease: they were 6 strains of Pseudomonax, 4 strains of Arthrobater, an Achromobacter strain, 2 strains of Flavobacterium, and a Pedohacter strain. We expect these Arctic bacteria can be used for screening to develop new industrial enzymes that are active at low temperatures.

Design of T-N2SCD Detection Model based on Time Window (타임 윈도우 기반의 T-N2SCD 탐지 모델 구현)

  • Shin, Mi-Yea;Won, Il-Young;Lee, Sang-Ho
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.13 no.11
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    • pp.2341-2348
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    • 2009
  • An intrusion detection technique based on host consider system call sequence or system call arguments. These two ways are suitable when system call sequence or order and length of system call arguments are out of order. However, there are two disadvantages which a false positive rate and a false negative rate are high. In this paper we propose the T-N2SCD detection model based on Time Window in order to reduce false positive rate and false negative rate. Data for using this experiment is provided from DARPA. As experimental results, the proposed model showed that the false positive rate and the false negative rate are lowest at an interval of 1000ms than at different intervals.

Porcine ear necrosis syndrome by coinfection of porcine reproductive and respiratory syndrome virus and Staphylococcus hyicus (PRRSV와 Staphylococcus hyicus 복합감염에 의한 돼지 귀 괴사 증후군 증례 보고)

  • Lee, Seunghee;Jung, Ji-Youl;Kim, Seong-Hee;Kim, Jong-Wan;Park, Jung-Won;Kang, Dae-Young;Her, Ji-Woong;Jeong, Yea-Ji;So, Byung Jae;Yoon, Soon-Seek
    • Korean Journal of Veterinary Research
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    • v.57 no.2
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    • pp.143-146
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    • 2017
  • Porcine ear necrosis syndrome is characterized by erosive and ulcerative lesions at the margin or tip of the pinna. Three growing pigs of different ages exhibited retarded growth accompanied by reddening and necrosis of ear prior to death. Gross examination showed reddening, swelling, black discoloration, scaling, and variable-sized yellowish materials and edema in ear cross section. Microscopically, thrombosis, abscess, ulceration, epidermal hyperplasia, and dermal pyogranulomatous inflammation with an intralesional bacterial colony were observed. Staphylococcus hyicus was isolated in all pigs' ears and porcine reproductive and respiratory syndrome virus was detected by PCR and immunohistochemistry.

Application of Horizontal Subgrade Reaction Modulus to Bridge Abutment Design after Soil Improvement (연약지반 개량후 교대구간 수평지반반력계수 적용 사례)

  • Kim, Kyung-Tae;Park, See-Boum;Kim, Chang-Hyun;Lee, Jong-Bum;Yoon, Yea-Won
    • Proceedings of the Korean Geotechical Society Conference
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    • 2006.03a
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    • pp.1228-1236
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    • 2006
  • In soft ground, There are many case that Bridge Abutment is constructed after soil improvement in order to reduce the Negative Friction and prevent from Lateral Soil movements of Bridge Abutment. That section of Horizontal Subgrade Reaction $Modulus(K_h)$ derivation has much important mean due to Horizontal Stability of Abutment. It is come from behavior of Pile and Soil within depth of $1/\beta$. After Soil Improvement, however, If Bridge Abutment was construction, It's not impossible to carry out Field Investigation After Ground of Improved at design stage. Therefore, It's not able to derivate Horizontal Subgrade Reaction $Modulus(K_h)$. Therefore, in this case of study compare with Field Construction Test Data in order to derivation of Horizontal Subgrade Reaction $Modulus(K_h)$ and Reliability in terms of ground of Bridge Abutment by Sand Compaction Pile(SCP) during design of The 2nd Bridge Connection Road of Incheon International Airport. In this paper determine, Soil Property(The rate of strength increase, $c_u$ so on) and Horizontal Subgrade Reaction $Modulus(K_h)$ after soil improvement at design stage.

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An Approach on Life Cycle Based Efficiency Measurement in Construction Industry (건설 생산의 Life Cycle을 고려한 효율성 측정방안)

  • Jung Soon-Oh;Yoon Su-Won;Chin Sangyoon;Kim Yea-Sang;Park Ji-Hoon
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2004.11a
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    • pp.608-611
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    • 2004
  • Efficiency of the construction process is one of the most important factors to project success. However efficiency is not well defined or measured in construction projects in general. More importantly, efficiency of the construction should be viewed through the life-cycle of the whole production system not in a single phase of the construction process. Therefore, this study defines the concept of efficiency and suggests the efficiency measurement model in construction. As a case study, the suggested model was applied to the curtain wall construction process of the high rise buildings as well.

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Application of Supply Chain Management Concept to the Various Types of Curtain Wall Construction (커튼월의 공법 및 조달 유형에 따른 SCM 적용방안)

  • Moon Woo-Kyoung;Yun Soo-Won;Kim Yea-Sang;Chin Sangyoon;Park Ji-Hoon
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2004.11a
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    • pp.612-615
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    • 2004
  • Today, the curtain wall is used in many construction projects because of excellent economical efficiency and constructability. The life-cycle process of curtain wall construction consists of the architectural design, curtain wall design, manufacturing, const겨ction, and maintenance phase which has become one of the most important objects that have to be managed. Since the general management method focused on each separated phase, it has accompanied many problems such as increases of the cost and duration, and loss of productivity. To solve these problems, it is necessa교 to have a new management method based on supply chain management. Thus this research analysed the processes of stick system, semi-unit system, unit system, and panel system classified by the type of the curtain wall, and suggested proper methods of application of SCM concept to each type of curtain wall construction.

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Galangin Activates the ERK/AKT-Driven Nrf2 Signaling Pathway to Increase the Level of Reduced Glutathione in Human Keratinocytes

  • Hewage, Susara Ruwan Kumara Madduma;Piao, Mei Jing;Kang, Kyoung Ah;Ryu, Yea Seong;Fernando, Pattage Madushan Dilhara Jayatissa;Oh, Min Chang;Park, Jeong Eon;Shilnikova, Kristina;Moon, Yu Jin;Shin, Dae O;Hyun, Jin Won
    • Biomolecules & Therapeutics
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    • v.25 no.4
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    • pp.427-433
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    • 2017
  • Previously, we demonstrated that galangin (3,5,7-trihydroxyflavone) protects human keratinocytes against ultraviolet B (UVB)-induced oxidative damage. In this study, we investigated the effect of galangin on induction of antioxidant enzymes involved in synthesis of reduced glutathione (GSH), and investigated the associated upstream signaling cascades. By activating nuclear factor-erythroid 2-related factor (Nrf2), galangin treatment significantly increased expression of glutamate-cysteine ligase catalytic subunit (GCLC) and glutathione synthetase (GSS). This activation of Nrf2 depended on extracellular signal-regulated kinases (ERKs) and protein kinase B (AKT) signaling. Inhibition of GSH in galangin-treated cells attenuated the protective effect of galangin against the deleterious effects of UVB. Our results reveal that galangin protects human keratinocytes by activating ERK/AKT-Nrf2, leading to elevated expression of GSH-synthesizing enzymes.

Personal Factors that Affect the Satisfaction of Female Patients Undergoing Esthetic Suture after Typical Thyroidectomy

  • Kim, Hyo Young;Kim, Jung Won;Park, Jin Hyung;Kim, Jung Hun;Han, Yea Sik
    • Archives of Plastic Surgery
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    • v.40 no.4
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    • pp.414-424
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    • 2013
  • Background In esthetic surgery, understanding the factors that influence patient satisfaction is important for successful practice. We hypothesize that the factors that influence patient satisfaction include not only aesthetic and functional outcomes, but also personal factors such as the level of familiarity with factors affecting wound healing and expectations regarding aesthetic outcome. Methods One hundred patients who underwent esthetic closure after thyroidectomy were included in this study. In order to evaluate the individual characteristics of the patients, a preoperative survey was administered to the patients. We estimated the patient satisfaction six months postoperatively and assessed the aesthetic and functional outcomes using the Patient and Observer Scar Assessment Scale. Results According to the results of correlation analysis, level of familiarity with wound healing factors had a positive correlation with satisfaction. High expectations, pain, itching, and high observer scale score had negative correlations with satisfaction. The factors that were correlated with satisfaction were included in the multiple regression analysis. Level of familiarity with wound healing factors was found to have a positive relationship with satisfaction, while itching and observer scale were found to have a negative relationship with satisfaction. After excluding 10 patients who had hypertrophic scars, only level of familiarity with wound healing factors and expectations affected satisfaction. Conclusions The level of familiarity with factors affecting wound healing and expectations were found to independently affect satisfaction. Improving patients' level of familiarity with wound healing factors and reducing their expectations by providing suitable preoperative education has the potential to improve patient satisfaction.

A Study on The Unconfined Compression Test Method of Cohesive Soil (점성토(粘性土)의 일축압축강도(一軸壓縮强度) 시험방법(試驗方法)에 대(對)한 고찰(考察))

  • Kang, Yea Mook;Lee, Sei Jin;Lee, Dal Won
    • Korean Journal of Agricultural Science
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    • v.17 no.2
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    • pp.95-101
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    • 1990
  • In order to investigate the influence of unconfined compression strength on undisturbed cohesive soil, the unconfined compression test were carried out on the basis of various size of specimen and compression rate. The result of these experiments were summarized as follows. 1. As the section area of specimen increased. the unconfined compression strength was decreased. 2. As the ratio of height and diameter of specimen increased, the unconfined compression strength was decreased. 3. The unconfined compression strength was increased by 3%, but in values over the 3% was decrease. 4. As the compression rate increased. the modulus of deformation was increased.

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