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Whole Genome Sequence of a Korean Isolate (strain 51) of Helicobacter pylori

  • Lee Woo Kon;Cho Myung Je;Baik Seung Chul;Song Jae Young;Park Jeong Uck;Kang Hyung Lyun;Youn Hee Shang;Ko Gyung Hyuck;Rhee Kwang Ho
    • Proceedings of the Microbiological Society of Korea Conference
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    • 2002.10a
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    • pp.180-182
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    • 2002
  • Substantial genomic diversity has been expected among clinical isolates of H. pylori. We have suggested that the two complete H. pylori genomes already sequenced may be insufficient for providing a discriminatory tool for typing clinical isolates as well as an insight into the genomic diversity, which enable to establish strategy for control of H. pylori infection. In this study, we determine the nucleotide sequence of the entire genome of Korean strain 51 and compare it with two reported genomic sequences to suggest validity for extensive genomic sequencing of H. pylori. The genome of H. pylori 51 consists of a circular chromosome with a size of 1,591,297 bp, which is corresponding to $95.4\%\;and\;96.8\%$ of the 26695 and J99 chromosome length, respectively. We predict that there are 1,454 open reading frames (ORFs) in 51, representing $91.4\%\;and\;97.2\%$ of the reported numbers of ORF of 26695 and J99, respectively. In contrast to 26695 and J99 that have 123 and 65 strain-specific genes, respectively, of the 1,454 genes, only 39 genes are unique to 51. Differences in genomic organization between 51 and each foreign strain were greater than between 2 foreign strains in pair wise entire sequence alignments by BLASTN. Particularly, the extent of genomic rearrangement observed between 51 and 26695 is higher than between 51 and J99. Multiple sequence alignment of orthologous genes among 3 strains showed that 51 is genetically closer to 26695 rather than J99. Phylogenetic analysis of nonsynonymous and synonymous mutation indicated J99 has the longest branch length in the unrooted phylogenetic tree, suggesting that J99 has higher mutation rate than the other 2 strains.

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The Effect of Transformational Leadership Characteristics on the Innovative Behavior of Follower -Focusing on the mediating effect of followership characteristics- (변혁적 리더십의 특성이 조직 구성원의 혁신행동에 미치는 영향 -팔로워십 특성의 매개효과를 중심으로-)

  • Song, Chang-Soo;Dong, Haklim
    • Journal of Digital Convergence
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    • v.19 no.4
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    • pp.119-131
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    • 2021
  • The purpose of this study is to confirm the mediating effect of followership characteristics when the components of transformational leadership influences the innovative behavior of follower. For this study, response data of nationwide 551 workers were finally analyzed using SPSS 24 and Process Macro 3.5. The research results are as follows. All of the components of transformational leadership had a positive(+) effect on innovative behavior. In this process, team spirit, the characteristic of followership, was confirmed to have a mediating effect in all relationships. Perception of goal alignment and active orientation were found to have mediating effects in some types of combination. On the other hand, critical thinking had no mediating effect. This study has academic significance that variables with complex characteristics were divided into sub-characteristics for analyzing. In practice, it is suggested that there is an effective combination type for each characteristic of the variables in promoting the innovative behavior of follower. Based on the research results, the limitations of the research and future research tasks were presented.

An Exploratory Study on Sales and Operations Planning as SCM Supporting Tool (공급망 관리 지원도구로서의 S&OP 운영에 관한 탐색적 연구)

  • Park, Seong Taek;Kim, Tae Ung;Kim, Mi Ryang
    • Journal of Digital Convergence
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    • v.19 no.2
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    • pp.93-103
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    • 2021
  • S&OP(Sales and Operations Planning) is an ongoing process of periodic planning, reviewing, and evaluation through the involvement of all key stakeholders. Within this process, performance is regularly reviewed and early warning signals are generated, so that the company can react quickly to changing market and operational environment. This paper presents a framework for effective S&OP for fair alignment, accountability, teamwork, visibility, and risk management. This framework focuses on supply chain information governance, level of information sharing through S&OP, role of S&OP as coordination mechanism, APS effectivesness as a planning tool and SCM performance. In addition, a brief case study on the operating characteristics of S&OP at three Korean firms is presented. Implications of the study finding are also provided. It will also make companies that are considering the introduction of S&OP aware of the importance of S&OP, which will provide practical guidelines for the introduction of S&OP.

Method of Deriving Activity Relationship and Location Information from BIM Model for Construction Schedule Management (공정관리 활용을 위한 BIM모델의 공정별 수순 및 위치정보 추출방안)

  • Yoon, Hyeongseok;Lee, Jaehee;Hwang, Jaeyeong;Kang, Hyojeong;Park, sangmi;Kang, Leenseok
    • Korean Journal of Construction Engineering and Management
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    • v.23 no.2
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    • pp.33-44
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    • 2022
  • The simulation function by the 4D system is a representative BIM function in the construction stage. For the 4D simulation, schedule information for each activity must be created and then linked with the 3D model. Since the 3D model created in the design stage does not consider schedule information, there are practical difficulties in the process of creating schedule information for application to the construction stage and linking the 3D model. In this study, after extracting the schedule information of the construction stage using the HDBSCAN algorithm from the 3D model in the design stage, authors propose a methodology for automatically generating schedule information by identifying precedence and sequencing relationships by applying the topological alignment algorithm. Since the generated schedule information is created based on the 3D model, it can be used as information that is automatically linked by the common parameters between the schedule and the 3D model in the 4D system, and the practical utility of the 4D system can be increased. The proposed methodology was applied to the four bridge projects to confirm the schedule information generation, and applied to the 4D system to confirm the simplification of the link process between schedule and 3D model.

Pickprimer: A Graphic User Interface Program for Primer Design on the Gene Target Region (픽프라이머 : 유전자 목표 구간 탐색 모듈을 포함한 프라이머 제작 그래픽 프로그램)

  • Chung, Hee;Mun, Jeong-Hwan;Lee, Seung-Chan;Yu, Hee-Ju
    • Horticultural Science & Technology
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    • v.29 no.5
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    • pp.461-466
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    • 2011
  • In genetic and molecular breeding studies of plants, researchers need to design various kinds of primers based on their research purposes. So far many kinds of web- or script-based non-commercial programs for primer design are available. Because most of them do not include user interface for multipurpose usage including gene structure prediction and direct target selection on sequences, it has been a laborious work to design primers targeting on the exon or intron regions of interesting genes. Here we report a primer designing graphic user interface program, Pickprimer, that includes gene structure prediction and primer design modules by combining source codes of the Spidey and Primer3 programs. This program provides simple graphic user interface to input sequences and design primers. Genomic sequence and mRNA or coding sequence of genes can be copy and pasted or input as fasta or text files. Based on alignment of the input sequences using the Spidey module, a putative gene structure is graphically visualized along with exon-intron sequences of color codes. Primer design can be easily performed by dragging mouse on the displayed sequences or input primer targeting position with desirable values of primers. The output of designed primers with detailed information is provided by the Primer3 module. PCR evaluation of 24 selected primer sets successfully amplified single amplicons from six Brassica rapa cultivars. The Pickprimer will be a convenient tool for genetic and molecular breeding studies of plants.

Effect of the Changes in Forward Head Posture and Neutral Head Posture on Respiratory (전방머리자세와 중립자세에 대한 인위적 자세변화가 호흡에 미치는 영향)

  • Bae, Wonsik;Lee, Keoncheol;Park, Seungwook;Baek, Yonghyeon
    • Journal of The Korean Society of Integrative Medicine
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    • v.5 no.1
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    • pp.67-74
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    • 2017
  • Purpose : Forward head posture is typical neck disorders occur in all people. And this attitude causes a shortening and weakening of the muscles in the body. It also causes excessive extension acts as a reward. This attitude has to change if the pain occurs around the neck and shoulders, and are subjected to unusual stress. Patients with chronic neck pain associated with forward head posture was found to be the more severe the fall of the respiratory, forward head posture poor quality of much breath. The purpose of this study was to compare the effect of changes in forward head posture and neutral head posture on respiratory. Method : Forty volunteers were participated in study and divided into two groups [forward head posture group (n=20) and neutral head posture group (n=20)]. We measured cervical alignment with global postural system to find out a forward head posture. Respiratory function was measured with a SPIROVIT SP-1 equipment and we found out a forced vital capacity (FVC), forced expiratory volume at one second (FEV1) and FEV1/FVC. A pared t-test was used to determine a statistical significance for the pulmonary function variation and a independent t-test was used to determine a statistical significance in the two groups. Results : In the experimental group, FVC and FEV1 were significantly higher in the artificial neutral head posture than in the forward head posture. In the control group, FVC and FEV1 were significantly higher in the neutral head posture than in the forward head posture. FVC, FEV1, and FEV1/ FVC were significantly higher in the neutral head posture of control group than the artificial neutral head posture of experimental group and higher in the artificial forward head posture of control group than the forward head posture of experimental group. Conclusion : In conclusion, neutral head posture is considered to be an important factor in correct posture and improvement of lung function and continuous study of posture correction program for posture imbalance will be needed.

Applications of Nanomanipulator in Nanowires (나노메니퓰레이터를 이용한 나노선의 특성평가)

  • Yoon, Sang-Won;Seo, Jong-Hyun;Ahn, Jae-Pyoung;Seong, Tae-Yeon;Lee, Kon-Bae
    • Journal of Powder Materials
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    • v.16 no.2
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    • pp.138-145
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    • 2009
  • The combination of focused ion beam (FIB) and 4 point probe nanomanipulator could make various nano manufacturing and electrical measurements possible. In this study, we manufactured individual ZnO nanowire devices and measured those electrical properties. In addition, tensile experiments of metallic Au and Pd nanowires was performed by the same directional alignment of two nanomanipulators and a nanowire. It was confirmed from I-V curves that Ohmic contact is formed between electrodes and nanomanipulators, which is able to directly measure the electrical properties of a nanowire itself. In the mechanical tensile test, Au and Pd nanowires showed a totally different fracture behavior except the realignment from <110> to <002>. The deformation until the fracture was governed by twin for Au and by slip for Pd nanowires, respectively. The crystallographic relationship and fracture mechanism was discussed by TEM observations.

The Removal of Spatial Inconsistency between SLI and 2D Map for Conflation (SLI(Street-level Imagery)와 2D 지도간의 합성을 위한 위치 편차 제거)

  • Ga, Chill-O;Lee, Jeung-Ho;Yang, Sung-Chul;Yu, Ki-Yun
    • Journal of Korean Society for Geospatial Information Science
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    • v.20 no.2
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    • pp.63-71
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    • 2012
  • Recently, web portals have been offering georeferenced SLI(Street-Level Imagery) services, such as Google Streetview. The SLI has a distinctive strength over aerial images or vector maps because it gives us the same view as we see the real world on the street. Based on the characteristic, applicability of the SLI can be increased substantially through conflation with other spatial datasets. However, spatial inconsistency between different datasets is the main reason to decrease the quality of conflation when conflating them. Therefore, this research aims to remove the spatial inconsistency to conflate an SLI with a widely used 2D vector map. The removal of the spatial inconsistency is conducted through three sub-processes of (1) road intersection matching between the SLI trace and the road layer of the vector map for detecting CPPs(Control Point Pairs), (2) inaccurate CPPs filtering by analyzing the trend of the CPPs, and (3) local alignment using accurate CPPs. In addition, we propose an evaluation method suitable for conflation result including an SLI, and verify the effect of the removal of the spatial inconsistency.

Subtalar Distraction Arthrodesis Using Frozen Allobone Graft by Interpositional Structural (동결 동종골의 구조적 삽입을 이용한 거골하 신연 유합술)

  • Choi, Jang-Seok;Kwak, Ji-Hoon;Jun, Sung-Soo;Park, Hong-Gi
    • Journal of Korean Foot and Ankle Society
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    • v.15 no.4
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    • pp.201-206
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    • 2011
  • Purpose: Subtalar distraction arthrodesis is useful treatment option for restore hindfoot alignment. but, using structural autograft have high risk of donor site morbidity. Recently, by replacing the structural allograft has been reported satisfactory clinical results. Therefore, the authors reviewed the results of subtalar distraction arthrodesis using a structural allograft, retrospectively. Materials and Methods: From January 2008 to May 2010, 12 patients (12 feets; 9 male, 3 female) underwent subtalar distraction arthrodesis using frozen structural allograft. 9 cases were calcaneal malunion, 2 were nonunion or malunion after subtalar arthrodesis, 1 was other cause. Mean age was 38.9 (12~66) years old and follow up period was 16.5 (12~36) months. Surgical was performed with posterolateral approach and tricortical allobone block of frozen femoral neck was used. Analysis was done with retorspective manner to evaluate preoperative, postoperative, and final follow up radiologic measurement and AOFAS ankle-hindfoot scale. Results: There was statistically significant increase (p<0.05) of ankle-hindfoot scale from preoperative 27.5 points to postoperative 72.5 points, talocalcaneal height by 6.62 mm, calcaneal pitch angle by 5.73 degrees, lateral talocalcaneal angle by 6.38 degrees and significant decrease (p<0.05) of tali-1st metatarsal angle by 5.23 degrees. 11 feet (91.7%) acquired bony union and it takes average 5.1 months. Final post-operative result revealed talocalcaneal height changed by 2.57 mm, calcaneal pitch anble, lateral talocalcaneal angle, talar-1st metatarsal angle were changed by 2.63 degrees, 1.62 degrees, 1.18 degrees, respectively (p<0.05). 3 cases of partial osteonecrosis of posterior facet of calcaneus were observed in operation field, 4 cases of complication were developed (1 case of nonunion, 1 collapse of allobone graft, 1 screw loosening, 1 superficial skin necrosis). Conclusion: Subtalar distraction arthrodesis using frozen structural allobone graft is useful alternative treatment method of arthrodesis with structural autobone graft.

In vitro activity comparison of Erm proteins from Firmicutes and Actinobacteria (Firmicutes와 Actinobacteria에 속하는 세균들의 Erm 단백질 in vitro 활성 비교)

  • Jin, Hyung Jong
    • Korean Journal of Microbiology
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    • v.52 no.3
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    • pp.269-277
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    • 2016
  • Erm proteins methylate the specific adenine residue ($A_{2058}$, E. coli numbering) on 23S rRNA to confer the $MLS_B$ (macrolidelincosamide-streptogramin B) antibiotic resistance on a variety of microorganisms ranging from antibiotic producers to pathogens. When phylogenetic tree is constructed, two main clusters come out forming each cluster of Actinobacteria and Firmicutes. Two representative Erm proteins from each cluster were selected and their in vitro methylation activities were compared. ErmS and ErmE from Actinobacteria cluster exhibited much higher activities than ErmB and ErmC' from Firmicutes: 9 fold difference when ErmC' and ErmE were compared and 13 fold between ErmS and ErmB. Most of the difference was observed and presumed to be caused by N-terminal and C-terminal extra region from ErmS and ErmE, respectively because NT59TE in which N-terminal end 59 amino acids was truncated from wild type ErmS exhibited only 22.5% of wild type ErmS activity. Meanwhile, even NT59TE showed three and 2.2 times more activity when it was compared to ErmB and C, respectively, suggesting core region from antibiotic producers contains extra structure enabling higher activity. This is suggested to be possible through the extra region of 197RWS199 (from both ErmS and ErmE), 261GVGGSLY267 (from ErmS), and 261GVGGNIQ267 (from ErmE) and 291SVV293 (from ErmS) and 291GAV293 (from ErmE) by multiple sequence alignment.