• Title/Summary/Keyword: 클론 검사

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Cross-Language Clone Detection based on Common Token (공통 토큰에 기반한 서로 다른 언어의 유사성 검사)

  • Hong, Sung-Moon;Kim, Hyunha;Lee, Jaehyung;Park, Sungwoo;Mo, Ji-Hwan;Doh, Kyung-Goo
    • Journal of Software Assessment and Valuation
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    • v.14 no.2
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    • pp.35-44
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    • 2018
  • Tools for detecting cross-language clones usually compare abstract-syntax-tree representations of source code, which lacks scalability. In order to compare large source code to a practical level, we need a similarity checking technique that works on a token level basis. In this paper, we define common tokens that represent all tokens commonly used in programming languages of different paradigms. Each source code of different language is then transformed into the list of common tokens that are compared. Experimental results using exEyes show that our proposed method using common tokens is effective in detecting cross-language clones.

Molecular-epidemiologic study on outbreak of colonization by extended spectrum β-lactamase producing Klebsiella pneumoniae in neonatal intensive care unit (신생아 중환자실에서 extended spectrum β-lactamase를 생성하는 Klebsiella pneumoniae 집단 보균 발생의 분자 역학적 조사 및 추적관찰)

  • Jun, Nu-Lee;Kim, Mi-Na;Jeong, Jae-Sim;Kim, Yang-Soo;Kim, Ellen Ai-Rhan;Kim, Ki-Soo;Pi, Soo-Young
    • Clinical and Experimental Pediatrics
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    • v.49 no.2
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    • pp.150-156
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    • 2006
  • Purpose : The aims of this study included assessment of molecular-epidemiologic features during an outbreak of colonization of extended spectrum ${\beta}$-lactamase producing Klebsiella pneumoniae(ESBL-KPN) and re-evaluation of their colonized status one year later. Methods : Rectal swab cultures for ESBL-KPN from all hospitalized infants and newly admitted infants were obtained during the outbreak of colonization from July to December, 2000. The pattern of XbaI-digested chromosomal DNA of isolates were analyzed by pulsed-field gel electrophoresis. Weekly rectal swab cultures were obtained during the outbreak until patients were either discharged or decolonized. Patients discharged after being colonized had follow up stool cultures a year later. Results : A total of 80 patients(28.5 percent) were colonized. Of those, 53 whose pulsed-field gel electrophoresis(PFGE) was possible only once, were ESBL-KPN grouped into six cluster clones and 10 single clones : 28 patients(52.8 percent) were colonized with type A, the most common clone, followed by type B in 11 patients(20.8 percent). Of those 12 patients in whom serial PFGE was done more than twice, type A was predominant. Narrowed-down in strains occurred from types A, B, C, D and three single clones at initiation of the study into types A and type B after three months of strict infection control. Among 75 patients(93.7 percent) who were sent home after being colonized, 30 patients were re-called for stool cultures a year later : All of them were decolonized. Conclusion : This study demonstrates the importance of infection control as the diversity of ESBL-KPN strains could be narrowed into fewer strains. Colonization of ESBL-KPN could be reversed upon return to the community.

A Case of Hemophagocytic Lymphohistiocytosis with Clonal Karyotype Abnormalities (클론성 염색체이상을 보인 혈구포식 림프조직구증 1예)

  • Choi, Gae-Ryung;Kim, Ha-Nui;Cho, Chi-Hyun;Yoo, Byoung-Joon;Kim, Myung-Han;Kim, Jang-Su;Lim, Chae-Seung;Lee, Kap No
    • Laboratory Medicine Online
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    • v.1 no.2
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    • pp.110-114
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    • 2011
  • There have been a few reports of hemophagocytic lymphohistiocytosis (HLH) with chromosomal abnormalities. Clonal chromosomal abnormalities in HLH patients are usually found in association with hematologic malignancies and rarely with epstein-barr virus (EBV) infection. Here, we report a fatal case of HLH with clonal karyotype abnormalities. A 75-yr-old man was admitted with persistent anorexia and high fever. Laboratory data revealed pancytopenia, hypofibrinogenemia, hyperferritinemia, prolonged prothrombin time and activated partial thromboplastin time, and marked elevated level of serum transaminases. In real time-PCR using whole blood, EBV DNA was not detected but cytomegalovirus (CMV) DNA was detected. The bone marrow aspiration smear showed hyperplasia of mature histiocytes with prominent hemophagocytosis. In chromosomal analysis of bone marrow aspirates, complex chromosomal abnormalities were found. In spite of steroid pulse therapy and antibiotic treatment, he died of disseminated intravascular coagulopathy.

Improvement of BigCloneBench Using Tree-Based Convolutional Neural Network (트리 기반 컨볼루션 신경망을 이용한 BigCloneBench 개선)

  • Park, Gunwoo;Hong, Sung-Moon;Kim, Hyunha;Doh, Kyung-Goo
    • Journal of Software Assessment and Valuation
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    • v.15 no.1
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    • pp.43-53
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    • 2019
  • BigCloneBench has recently been used for performance evaluation of code clone detection tool using machine learning. However, since BigCloneBench is not a benchmark that is optimized for machine learning, incorrect learning data can be created. In this paper, we have shown through experiments using machine learning that the set of Type-4 clone methods provided by BigCloneBench can additionally be found. Experimental results using Tree-Based Convolutional Neural Network show that our proposed method is effective in improving BigCloneBench's dataset.

Expression in Eschepichia coli of a Cloned Bacillus thuringiensis subsp. kurstaki HDI In-secticidal Protein Gene. (클로닝된 Bacillus thuringiensis subsp. kurstaki HDI 살충성 단백질 유전자의 대장균에서의 발현)

  • 황성희;차성철;유관희;이형환
    • Microbiology and Biotechnology Letters
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    • v.26 no.6
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    • pp.497-506
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    • 1998
  • The expression in Escherichia coli of a cloned insecticidal protein (ICP) gene from Bacillus thuringiensis var. kurstaki HD1 in pHLN1-80 (+) and pHLN2-80(-) plasmids was investigated through deletions in promoters, transcription start point, and termination region. Six recombinant plasmids were constructed in an attempt to analyze the overexpression of the ICP in relations to its gene structure. The amounts of ICP produced from the recombinants were measured by SDS-PAGE and confirmed by Western blot analysis. One clone was not overexpressed which having only -80 bp (contained BtI promoter) part of the ICP gene promoter (without Plac promoter), the right-oriented ICP gene and the termination region. Removal of 350 bp from upstream region of the Plac of the clone pHLN2-80 (-) resulted in overexpression of the ICP. One clone was not overexpressed in which the clone consisted of -72 bp part of the ICP promoter without the transcription start point and the transcriptional termination region, and having the right-oriented ICP gene sequence. One clone consisting of the inverted ICP gene sequence, the -72 bp ICP gene promoter, and without the termination region caused overexpression. One clone which consisted of the inverted ICP gene, the -72 bp ICP gene promoter and the termination sequence was overexpressed. These results indicated that the Plac promoter, transcription termination region, the inverted ICP gene insertion, and the -80 bp or -72 bp part of the ICP gene promoters were concerned in the overexpression of the ICP gene in the recombinant plasmid, and also the overexpression mechanism might result from the disruption of the transcription-suppressing regions in the promoter regions.

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Immunoblotting Assay for Glyphosate-tolerant Genetically Modified Soybean in Soybean Products (식품 중 제초제내성 유전자재조합 콩의 immunoblotting 분석)

  • Son, Dae-Yeul;Moon, Jung-Hee;Ahn, Kang-Mo;Shon, Dong-Hwa;Lee, Kwang-Shin;Sim, Hee-Young;Han, Young-Shin;Lee, Sang-Il
    • Korean Journal of Food Science and Technology
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    • v.36 no.3
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    • pp.369-374
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    • 2004
  • Genetically modified (GM) soybean Roundup Ready carries Agrobacterium sp. CP4 gene, which expresses 5-enolpyruvylshikimate-3-phosphate synthase (CP4EPSPS). CP4EPSPS in GM soybeans and soybean curds was screened using CP4EPSPS-specific polyclonal and monoclonal antibodies (pab and mab, respectively) by immunoblotting. Isolated recombinant CP4EPSPS was detected at detection limits of $0.006\;and\;0.0006{\mu}g$, whereas those of CP4EPSPS expressed in GM soybean were $0.001\;and\;0.0001{\mu}g$g, using mab and pab, respectively. From nine screened soybean curds, two had positive results with pab Immunoblotting method with pab and mab developed in this study could be applied to screen glyphosate-tolerant GM soybeans in soybean products.

Microbial Population Diversity of the Mud Flat in Suncheon Bay Based on 16S rDNA Sequences and Extracellular Enzyme Activities (남해안 갯벌 미생물의 세포외효소 활성 및 16S rDNA 분석에 의한 다양성 조사)

  • Kim, Yu-Jeong;Kim, Sung-Kyum;Kwon, Eun-Ju;Baik, Keun-Sik;Kim, Jung-Ho;Kim, Hoon
    • Applied Biological Chemistry
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    • v.50 no.4
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    • pp.268-275
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    • 2007
  • Diversity of the mud flat microbial population in Suncheon Bay was investigated by studying extracellular enzyme activities and 16S rDNA sequences. Four culturable bacterial strains with CMCase, xylanase and protease activities were isolated from the wetland and the mud flat. All the strains produced more xylanase activity than CMCase or protease activity, and the properties of the isolate enzymes from the wetland were similar to those from the mud flat. About 2,000 clones were obtained with the 16S rDNA amplified from the metagenomic DNA isolated from the mud samples. Based on the restriction pattern(s), seventeen clones were selected for base sequence analysis. Of the 17 clones, only 35% (6 clones) were found to be cultured strains and 65% (11 clones) to be uncultured strains. The similarities in the base sequences of the clones ranged from 91.0% to 99.9% with an average similarity of 97.3%. The clones could be divided into 7 groups, Proteobacteria (9 clones, 52.9%), Firmicutes (3 clones, 17.6%), Bacteroidetes (1 clone), Flavobacteria (1 clone), Verrucomicrobia (1 clone), Acidobacteria (1 clone), and Chloroflexi (1 clone). Most of the Proteobacteria clones were gamma Proteobacteria associated with oxidation-reduction of sulfur.

Allergenicity of Soybeans Depending on Their Variety (품종에 따른 콩의 알레르기성)

  • Son, Dae-Yeul;Kim, Ye-Jin
    • Korean Journal of Food Science and Technology
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    • v.42 no.5
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    • pp.627-631
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    • 2010
  • The allergenicity of soybeans was analyzed using polyclonal antibodies and the blood sera of patients with soybean allergy, using fourteen different varieties of soybeans that are consumed in Korea. The study that used polyclonal antibodies having specificity for soybeans showed that while some of the fourteen varieties of soybeans contained additional protein bands indicating antigenicity, others lacked such bands, and the most antigenic protein was found in Jinpum soybeans. In comparing blood sera reactivity of four patients having soybean allergies, who had antigenicity values of 65U/ml or more according to CAP testing, the soybean varieties of Danbaek and Shinpaldal2 had the most reactivity and Daewon had the least. The result that the allergenicity of proteins in soybeans differs according to the variety of soybean, leads to the conclusion that it may be possible to reduce consumer allergic reactions to soybean products by choosing an appropriate variety of soybeans.

Successful Management of Feline Infectious Peritonitis with Human Recombinant Interferon-alpha and Pentoxifylline in a Cat (재조합 인간 인터페론 알파와 Pentoxifylline을 이용한 고양이 전염성 복막염의 치료 증례)

  • Kang, Min-Hee;Park, Hee-Myung
    • Journal of Veterinary Clinics
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    • v.28 no.4
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    • pp.427-430
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    • 2011
  • A 6-month-old intact female, domestic short hair cat was presented with dyspnea and anorexia for 2 days. Physical examination revealed muffled heart sound with labored breaths. Hyperproteinemia and hyperglobulinemia with polyclonal gammapathy was revealed. Pleural effusion was non-septic exudates, it also had hyperglobulinemia with decreased albumin: globuline ration. In addition, effusion RT-PCR for feline coronavirus was positive in this cat. Feline infectious peritonitis (FIP) was strongly suspected and aggressive treatments with human interferon-alpha, pentoxifylline, and glucocorticoids were initiated. The cat remained healthy without recurrence of pleural effusion during 5 months follow-up periods. To the author's knowledge, this is the first case report describing successful management of FIP with human interferon-alpha and pentoxifylline in Korea.

Polyclonal Antibody against Paenibacillus larvae and its Application (Paenibacillus larvae에 대한 다클론 항체 및 그 응용)

  • 백경찬;양옥순;정규회;윤병수
    • Korean journal of applied entomology
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    • v.41 no.1
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    • pp.49-53
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    • 2002
  • Paenibacillus larvae is a gram-positive, spore-forming bacterium that is etiological agent for american foulbrood disease (AFB), which is the most severe disease in honey bee. To detect P. larvae from infected honeybee-comb or larvae, polyclonal antibody against whole bacterium was produced from guineapig and its specificity was evaluated. After optimization of ELISA-based detection system using these antibodies, a number of different P. larvae strains were analysed. Polyclonal antibody against P. larvae ATCC 25747 showed high affinity to most strains of P. larvae including P. larvae. strain ATCC 9545 (type strain), ATCC 25747 and other korean strain, SJl5 but exhibited no cross-reaction with other bacterial species. Additionally, this type of ELISA system was used for the detection of AFB in field-application The results have shown that this antibody could be useful for the rapid identification and monitoring of P. larvae in honeybee-comb.