• Title/Summary/Keyword: Insertion and Deletion

Search Result 205, Processing Time 0.025 seconds

Synthetic Regulatory Elements of the Nopaline Synthase Promoter in Higher Plants (고등 식물에서 Nopaline Synthase Promoter의 합성 조절 요소)

  • Kim, Young-Hee
    • Korean Journal of Plant Tissue Culture
    • /
    • v.22 no.4
    • /
    • pp.201-205
    • /
    • 1995
  • The synthetic oligomers called nos right palindrome (RP) element and left palindrome (LP) element were inserted into nos.minimal promoter nos 5'-101 deletion mutant The activity of nos promoter was measured by studying the expression pattern of gene fusion between nos promoter and reporter genes such as chloramphenicol acetyltransferase and $\beta$-glucuconidase. Analysis of transgenic tobacco plane carrying transgene showed that the activity of nos minimal promoter activity was recovered by insertion of synthetic nos RP element. Nos RP element insertion of nos minimal promoter was induced by auxin, dithiothreitol, salicylic acid and methyl jasmonate.

  • PDF

Variation of nuclear and mitochondrial DNAs in Korean and Chinese isolates of Clonorchis sinensis

  • Lee, Soo-Ung;Huh, Sun
    • Parasites, Hosts and Diseases
    • /
    • v.42 no.3
    • /
    • pp.145-148
    • /
    • 2004
  • We compared the DNA sequence difference of isolates of Clonorchis sinensis from one Korean (Kimhae) and two Chinese areas (Guangxi and Shenyang), The sequences of nuclear rDNA (18S, internal transcribed spacer 1 and 2: ITS1 and ITS2) and mitochondrial DNA (cytochrome c oxidase subunit 1: cox1) were compared. A very few intraspecific nucleotide substitution of the 18S, ITS1, ITS2 and cox1 was found among three isolates of C. sinensis and a few nucleotide insertion and deletion of ITS1 were detected. The 18S, ITS1, ITS2 and cox1 sequences were highly conserved among three isolates. These findings indicated that the Korean and two Chinese isolates are similar at the DNA sequence level.

A Study on the Equipment Maintenance Management Support System for Production Efficiency (생산효율화를 위한 설비보전관리 지원시스템에 관한 연구 -설비보전정보시스템을 중심으로-)

  • 송원섭
    • Journal of Korean Society of Industrial and Systems Engineering
    • /
    • v.21 no.48
    • /
    • pp.279-289
    • /
    • 1998
  • This study deals with the schemes of design, plan and operate maintenance management support systems and with the engineering approach for the solutions to build the maintenance management for the production efficiency. Maintenance Management Information System(MMIS) is the task that must focus on machinery historical data and planned maintenance action. Also the efficient supporting system in a maintenance management is achieved by database which is based on process of machinery's failure history. Designing method of maintenance management information system, maintenance modules are consisted of six factors ; machinery's historical data, lubrication control, check sheet, repair work, availability report, and performance report(control board and detailed reports), and then operators can rapidly utilize data in work place. In the implementation of designed model, program coding has been developed by Visual Basic 3.0. Data insertion, deletion and updating which perform menu screen is implemented by reading data from database. Implementation model based on LAN environment and related data is stored in Microsoft DBMS.

  • PDF

First detection and genetic characterization of porcine parvovirus 7 from Korean domestic pig farms

  • Ouh, In-Ohk;Park, Seyeon;Lee, Ju-Yeon;Song, Jae Young;Cho, In-Soo;Kim, Hye-Ryung;Park, Choi-Kyu
    • Journal of Veterinary Science
    • /
    • v.19 no.6
    • /
    • pp.855-857
    • /
    • 2018
  • Porcine parvovirus 7 (PPV7) was first detected in Korean pig farms in 2017. The detection rate of PPV7 DNA was 24.0% (30/125) in aborted pig fetuses and 74.9% (262/350) in finishing pigs, suggesting that PPV7 has circulated among Korean domestic pig farms. Phylogenetic analysis based on capsid protein amino acid sequences demonstrated that the nine isolated Korean strains (PPV-KA1-3 and PPV-KF1-6) were closely related to the previously reported USA and Chinese PPV7 strains. In addition, the Korean strains exhibit genetic diversity with both insertion and deletion mutations. This study contributes to the understanding of the molecular epidemiology of PPV7 in Korea.

Genetic Polymorphisms of t-PA and PAI-1 Genes in the Korean Population

  • Kang, Byung-Yong;Lee, Kang-Oh
    • Animal cells and systems
    • /
    • v.7 no.3
    • /
    • pp.249-253
    • /
    • 2003
  • Abnormalities in fibrinolysis system is associated with risk of hypertension. In this report, the Alu repeat insertion/deletion (I/D) polymorphism of tissue plasminogen activator (t-PA) and the Hind III RFLP of plasminogen activator inhibitor-1 (PAI-1) genes were investigated in 115 normotensives and 83 patients with hypertension, and their association with anthropometrical data and plasma biochemical parameters were analyzed. There were no significant differences in the gene frequencies of the two candidate genes between normotensives and hypertensives, respectively. Our results indicate lack of associations between the two polymorph isms in t-PA and PAI-1 genes and risk of hypertension in the population under study. However, the Hind III RFLP of PAI-1 gene was significantly associated with plasma glucose level, suggesting its role in glucose metabolism. It needs to be tested whether this RFLP of PAI-1 gene is associated with insulin resistance syndrome or non-insulin dependent diabetes mellitus (NIDDM) in the Korean population.

Building A PDM/CE Environment and Validating Integrity Using STEP (STEP을 이용한 PDM/CE환경의 구축과 데이타 무결성 확인)

  • 유상봉;서효원;고굉욱
    • The Journal of Society for e-Business Studies
    • /
    • v.1 no.1
    • /
    • pp.173-194
    • /
    • 1996
  • In order to adapt today's short product life cycle and rapid technology changes., integrated systems should be extended to support PDM (Product Data Management) or CE(Concurrent Engineering). A PDM/CE environment has been developed and a prototype is Presented in this paper. Features of the PDM/CE environment are 1) integrated product information model (IPIM) includes both data model and integrity constraints, 2) database systems are organized hierarchically so that working data C8Mot be referenced by other application systems until they are released into the global database, and 3) integrity constraints written in EXPRESS are validated both in the local databases and the global database. By keeping the integrity of the product data, undesirable propagation of illegal data to other application system can be prevented. For efficient validation, the constraints are distributed into the local and the global schemata. Separate triggering mechanisms are devised using the dependency of constraints to three different data operations, i.e., insertion, deletion, and update.

  • PDF

A Review of Timing Factors in Speech

  • Yun, Il-Sung
    • Speech Sciences
    • /
    • v.7 no.3
    • /
    • pp.87-98
    • /
    • 2000
  • Timing in speech is determined by many factors. In this paper, we introduce and discuss some factors that have generally been regarded as important in speech timing. They include stress, syllable structure, consonant insertion or deletion, tempo, lengthening at clause, phrase and word boundaries, preconsonantal vowel shortening, and compensation between segments or within phonological units (e.g., word, foot), compression due to the increase of syllables in word or foot level, etc. and each of them may playa crucial role in the structuring of speech timing in a language. But some of these timing factors must interact with each other rather than be independent and the effects of each factor on speech timing will vary from language to language. On the other hand, there could well be many other factors unknown so far. Finding out and investigating new timing factors and reinterpreting the already-known timing factors should enhance our understanding of timing structures in a given language or languages.

  • PDF

PASS: A Parallel Speech Understanding System

  • Chung, Sang-Hwa
    • Journal of Electrical Engineering and information Science
    • /
    • v.1 no.1
    • /
    • pp.1-9
    • /
    • 1996
  • A key issue in spoken language processing has become the integration of speech understanding and natural language processing(NLP). This paper presents a parallel computational model for the integration of speech and NLP. The model adopts a hierarchically-structured knowledge base and memory-based parsing techniques. Processing is carried out by passing multiple markers in parallel through the knowledge base. Speech-specific problems such as insertion, deletion, and substitution have been analyzed and their parallel solutions are provided. The complete system has been implemented on the Semantic Network Array Processor(SNAP) and is operational. Results show an 80% sentence recognition rate for the Air Traffic Control domain. Moreover, a 15-fold speed-up can be obtained over an identical sequential implementation with an increasing speed advantage as the size of the knowledge base grows.

  • PDF

Kindergartners' Reading of Words in Hangul : Effects of Phonological Awareness and Processing (음운론적 인식과 처리능력이 4-6세 유아의 한글 단어 읽기에 미치는 영향)

  • Choi, Na Ya;Yi, Soon Hyung
    • Korean Journal of Child Studies
    • /
    • v.28 no.4
    • /
    • pp.73-95
    • /
    • 2007
  • Causal relationships of kindergarteners' phonological awareness and processing to their ability to read words was investigated with the participation of 289 4- to 6-year-old children attending three kindergartens in Busan. Results showed gradual growth in reading ability with age. Children performed best in reading words and poorest in reading low frequency letters. They showed continuous development in skills of syllable deletion, phoneme substitution, phoneme insertion, phonological memory and naming. Discontinuous development was found in counting syllables. Longer syllables were difficult to count, and middle syllables of 3 syllable words were hard to delete. Children had poor perception of final consonants of Consonant-Vowel-Consonant syllables. Children's phonological awareness and processing were latent variables strongly related to ability to read words written in Hangul.

  • PDF

Performance Evaluation of English word Pronunciation Correction system (한국인을 위한 영어 발음 교정 시스템에 대한 성능 평가)

  • Kim Mujung;Kim Hyosook;Kim Byunggi
    • Proceedings of the KSPS conference
    • /
    • 2003.05a
    • /
    • pp.71-74
    • /
    • 2003
  • In this paper, we present some of experimental results developed in computer-based English Pronunciation Correction System for Korean speakers. The aim of the system is to detect incorrectly pronounced phonemes in spoken words and to give correction comment to users. Speech data were collected from 254 native speakers and 411 Koreans, then used for phoneme modeling and test. We built two types of acoustic phoneme models: native speaker model and Korean speaker model. We also built langugage models to reflect Koreans' commonly occurred mispronunications. The detection rate was over 90% in insertion/deletion/replacement of phonemes, but we got under 75% detection rate in diphthong split and accents.

  • PDF