• Title/Summary/Keyword: C Library

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A Study on Influences of Academic Library Service Quality on the Satisfaction and the Loyalty of Users (대학도서관의 서비스 품질이 이용자 만족도와 충성도에 미치는 영향에 관한 연구)

  • Kim, Gyu-Hwan;Nam, Young-Joon
    • Journal of the Korean Society for Library and Information Science
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    • v.41 no.2
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    • pp.135-159
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    • 2007
  • The purpose of this study is to analyze the casual relationships of the service qualify, the satisfaction of the users, and the loyalty of the users on the academic libraries. The study develops a model and a hypothesis based on the previous researches, and testifies through multiple regressions and path analysis using questionnaires from 266 academic library users(undergraduate students and graduate students) in the C University. The result of this study is summarized as the following: the service qualifies of e-service, contents, and librarians significantly influences the satisfaction of the users-undergraduate students on the qualifies of library space/environment and contents, and graduate students on the qualities of e-service and librarian. The satisfaction of the users and the quality of e-service are the variables that influence the loyalty of the users. The quality of e-service is an important variable that influence both the satisfaction and the loyalty of the users in academic libraries.

Construction of a Full-length cDNA Library from Korean Stewartia (Stewartia koreana Nakai) and Characterization of EST Dataset (노각나무(Stewartia koreana Nakai)의 cDNA library 제작 및 EST 분석)

  • Im, Su-Bin;Kim, Joon-Ki;Choi, Young-In;Choi, Sun-Hee;Kwon, Hye-Jin;Song, Ho-Kyung;Lim, Yong-Pyo
    • Horticultural Science & Technology
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    • v.29 no.2
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    • pp.116-122
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    • 2011
  • In this study, we report the generation and analysis of 1,392 expressed sequence tags (ESTs) from Korean Stewartia (Stewartia koreana Nakai). A cDNA library was generated from the young leaf tissue and a total of 1,392 cDNA were partially sequenced. EST and unigene sequence quality were determined by computational filtering, manual review, and BLAST analyses. Finally, 1,301 ESTs were acquired after the removal of the vector sequence and filtering over a minimum length 100 nucleotides. A total of 893 unigene, consisting of 150 contigs and 743 singletons, was identified after assembling. Also, we identified 95 new microsatellite-containing sequences from the unigenes and classified the structure according to their repeat unit. According to homology search with BLASTX against the NCBI database, 65% of ESTs were homologous with known function and 11.6% of ESTs were matched with putative or unknown function. The remaining 23.2% of ESTs showed no significant similarity to any protein sequences found in the public database. Annotation based searches against multiple databases including wine grape and populus sequences helped to identify putative functions of ESTs and unigenes. Gene ontology (GO) classification showed that the most abundant GO terms were transport, nucleotide binding, plastid, in terms biological process, molecular function and cellular component, respectively. The sequence data will be used to characterize potential roles of new genes in Stewartia and provided for the useful tools as a genetic resource.

Amino Acid Sequence Homology of Hybrid Poplar O-methyltransferuse Involved in Lignin Biosynthesis

  • Park, Young-Goo;Sul, Ill-Whan;Shin, Dong-Ill;Park, Jang-Won;Park, Hee-Sung
    • Journal of Plant Biotechnology
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    • v.3 no.3
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    • pp.131-134
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    • 2001
  • In $\lambda$-Zap II vector system, a cDNA library was constructed for the developing secondary xylem mRNA from hybrid poplar, Populus nigra x maximowiczii. A cDNA clone of 1.5 kb in size, pOMTB1.4 encoding a lignin-bispecific O-methyltransferase was screened by plaque hybridization using a probe of 540 bp cDNA amplified by polymerase chain reaction from the cDNA library and identified by nucleotide sequencing. Its nucleotide sequence contains one open reading frame of 366 amino acids. The deduced amino acid sequence in comparison with that of Populus tremuloides showed the differences of 9 amino acids and revealed 85-99% homology among alfalfa, poplar and aspen.

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Cloning of the novel putative apoptosis-related gene of Spirometra erinacei (Order Pseudophyllidea)

  • Lee Soo-Ung;Huh Sun
    • Parasites, Hosts and Diseases
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    • v.44 no.3
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    • pp.233-237
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    • 2006
  • We postulated that apolysis was processed in accordance with apoptotic changes occurring in a cestode, Spirometra erinacei (Pseudophyllidea). We cloned the novel putative apoptosis-associated gene from S. erinacei via screening of a S. erinacei cDNA library with a ced-3 gene (activator of apoptosis) probe from Caenorhabditis elegans. We identified a 261-bp cDNA sequence, which encodes for an 86-amino acid protein. The cloned gene expression was observed in the neck and gravid proglottids via Northern blotting, using cloned cDNA inserts as probes, but the clone was not expressed in any of other tissues. We suggest that this gene may be involved in the apolysis of S. erinacei during normal tissue development and differentiation in cestode parasites.

Cloning of Melanin Concentrating Hormone cDNA Gene from Olive Flounder (Paralichthys olivaceus) (넙치 (Paralichthys olivaceus)에서 멜라닌 농축 호르몬 cDHA 유전자의 클로닝)

  • JEON Jeong Min;SONG Young Hwan
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.36 no.5
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    • pp.442-448
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    • 2003
  • Melanin concentrating hormone (MCH) regulating color change of fish skin was identified from brain cDNA library of Olive flounder (Paralichthys olivaceus) during the analysis of Expressed Sequence Tags (ESTs). Olive flounder MCH gene consisted of 598 nucleotides encoding 150 amino acids. Olive flounder MCH protein revealed to contain signal peptide of 19 amino acid residues, pro-MCH of 131 amino acids being processed to biologically active and mature form of hormone with 25 amino acid residues at the carboxyl terminus. A comparative structural analysis revealed that Olive flounder MCH precursor had low sequence identity with other fish species and mammalian counterparts, while the amino acid sequences of mature hormone had a relatively high identity and more conserved. RT-PCR analysis revealed that olive flounder MCH precersor gene was expressed spectically only in the brain and not in other tissues.

Development of Object-Oriented C++ Library of Optimization Algorithms (최적화 알고리듬들의 객체지향 C++ 라이브러리의 개발)

  • Hyun, Chang-Hun;Choe, Yeong-Il
    • Journal of Industrial Technology
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    • v.20 no.B
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    • pp.115-123
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    • 2000
  • There are many optimal design packages, but they are big ones and they have only a few kinds of optimal algorithm coded with Fortran and it is sometimes necessary for user to write down some codes into their packages. So it is hard for user to learn how to use and customize them. More over, there are no commercial home-made software for optimum design. So, in this paper, several famous optimum algorithms are coded and modulized with C++ which is known as a suitable computer language in order to build up more algorithms into one computer software. All algorithms developed with C++ here were tested for comparison with optimization tool box of MATLAB and are superior to MATLAB.

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Construction of Complementary DNA Library and cDNA Cloning for Cy Strain of Odontoglossum Ringspot Virus Genomic RNA (오돈토글로썸 윤문 바이러스 Cy계통 게놈 RNA의 cDNA 구축 및 유전자 크로닝)

  • 류기현;박원목
    • Korean Journal Plant Pathology
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    • v.10 no.3
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    • pp.228-234
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    • 1994
  • Genomic RNA was extracted from Cy strain of odontoglossum ringspot tobamovirus (ORSV-Cy) isolated from infected leaves of tobacco cv. Samsun. Size of the genomic RNA was about 6.6 kb in length. The genomic RNA was fractionated using Sephadex G-50 column chromatography into 2 fractions. They were polyadenylated at their 3'-end using E. coli poly(A) polymerase. Polyadenylated viral RNA was recovered by oligo (dT) primer adapter containing NotI restriction site and Moloney murine leukemia virus SuperScript reverse transcriptase (RNase H-). Second-strand cDNA was synthesized by using E. coli DNA ligase, E. coli DNA polymerase I and E. coli RNase H. Recombinant plasmids containing cDNAs for ORSV-Cy RNA ranged from about 800 bp to 3,000 bp. Among the selected 238 recombinants, pORCY-124 clone was the largest one covering 3'-terminal half of the viral RNA. This clone contained two restriction sites for EcoRI and XbaI and one site for AccI, AvaI, BglII, BstXI, HindIII, PstI, and TthIII 1. respectively. The clone contained partial viral replicase, a full-length movement protein and a complete coat protein genes followed by a 3' untranslated region of 414 nucleotides based on restriction mapping and nucleotide sequencing analyses. Clones pORCY-028, -068, -072, -187 and -224 were overlapped with the pORCY-124. Clones pORCY-014 and -095 covered 5' half upstream from the middle region of the viral RNA, which was estimated based on restriction mapping and partial sequence analysis. Constructed cDNA library covered more than 90% of the viral genome.

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Transformation of Brassica napus with Acid Phosphatase Gene (Acid Phosphatase 유전자 도입에 의한 유채의 형질 전환)

  • Lee, Hyo-Shin;Son, Dae-Young;Jo, Jin-Ki
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.17 no.3
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    • pp.285-292
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    • 1997
  • This study was conducted to obtain the transgenic Brnssica napus plants with tobacco Apase gene using the binary vector system of Agrobacteriurn fumefociens. The results obtained were summarized as follows: A repressible acid phosphatase gene of Saccharon~yces cerevisiae, pho105 was used for screening of tobacco Apase cDNA. In order to identify Apase gene in tobacco genome, Southern blot analysis was pcrformed and the Apase gcnc may be present as a single copy, or at most two or three copies, in tobacco genome. To isolate the tobacco Apase gene, tobacco cDNA library was constructed using purifed mRNA from -Pi treated tobacco root and the plaque forming unit of the library was 2.8 x $10^5$ pfu/m${\ell}$, therefore the library might cover all expressed mRNAs. Using pho5 as a probe. tobacco Apase cDNA was cloned, and restriction mapping and Southern blot analysis of cDNA insert were revealed that the 3.6 kb cDNA contained tobacco acid phosphatase cDNA. Plasmid pGA695 -tcAPl was constructed by subcloning tobacco Apase cDNA into the Hind site of pGA695 with 35s promoter which can be expressed constitutively in plants. The Brassica napus cotyledonary petioles were cocultivated with the ,4 grobacteriunz and transferred to the selection medium. The transformed and regenerated plants were transplanted to soil medium. Southern blot analysis was done on the transformed plants, and it was confirmed that a foregin gene was stably integrated into the genonies of B. nnpus plants.

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Study on the Thought of Library of Naudé: From the Perspective of La Bibliothèque Mazarine (Naudé의 도서관 사상 연구 - 을 중심으로 -)

  • Nam, Tae-Woo;Cho, Heung-Yeon
    • Journal of the Korean Society for Library and Information Science
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    • v.47 no.3
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    • pp.363-384
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    • 2013
  • Gabriel Naud$\acute{e}$ is a great thinker and academic librarian in France who realized the spirit of universal public library in 17C. Based on the experiences of private librarian for 12 years in Italy and public librarian for 20 years in France, he concretized his thought for public library in 'la Biblioth$\grave{e}$que Mazarine', which is the essence of the spirit of public library in France. He also realized the importance of librarians as specialists, for the first time, who played important roles in the development of the library community as one of the great thinkers of public library. The purpose of this research is to study 'la Biblioth$\grave{e}$que Mazarine' where the spirit of public library had been prospered through the entire life of Gabriel Naud$\acute{e}$.

A Study on the Bibliographic Records and the Expansion of Library Catalog Using Open API (Open API를 이용한 서지레코드와 목록 확장에 관한 연구)

  • Gu, Jung-Eok;Lee, Eung-Bong
    • Journal of the Korean Society for Library and Information Science
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    • v.43 no.2
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    • pp.299-328
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    • 2009
  • In this study, the present condition of 8 Open APIs for books, such as Naver, Daum, Aladdin, Amazon, Google, KERIS, LibraryThing, and OCLC, were compared and analyzed. In addition, the bibliographic records of 167 samples of visible 'light & paraphotic' (DDC 535) classifications were selected from the bibliographic records of the library of C university, and the effectiveness of the Open APIs were compared and analyzed. On the basis of the results of this analysis, 12 Open API application models, which were judged to be useful in expanding the function of the access point of the bibliographic records and enhancing the library catalog using Open API, were experimentally implemented. Various methods of augmenting access points of bibliographic records and expanded library catalogue were investigated using the unique identifier described in the KORMARC fields of 001, 010, 012, 020, 035, 246, 505, 520, 850, 856 for the integrated format for bibliographic data, and Open API. Finally, using Open API for the brief display and detailed display screen as a result of search of the OPAC of the sample bibliographic records, the devices for the expanding library catalog were implemented as examples.