• Journal of Microbiology and Biotechnology
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• v.12 no.5
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• pp.716-721
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• 2002

The ldhL gene encoding the $_L$-(+) lactate dehydrogenase was cloned from Lactobacillus reuteri ATCC 55739 chromosomal DNA and characterized. An internal 750-bp fiagment of ldhL gene was amplified by PCR using primers based on the conserved region of lactobacilli ldhL genes. A genomic library off. reuteri ATCC 55739 was constructed using pBR322, and colony hybridization experiments were performed using the 750-bp fragment as aprobe. One clone harboring a 4.0-kb PstI fragment was identified, and nucleotide sequencing confirmed it as an open reading frame of 972 bp in size in the middle. In addition to IdhL gene, an ORF homologous to Streptococcus pneumoniae TIGR4 hydrolase gene and 3' part of phosphomevalonate kinase gene (mvaK2) were also found on the 4 kb fragment. $_L$-LDH of L. reuteri ATCC 55739 showed the highest degree of homology with the $_L$-LDH of Pediococcus acidilactici (62.4%), fullowed by the $_L$-LDH of Lactobacillus pentosus (58.7%). The size of IdhL transcript determined by Northern blot was 1 kb, indicating the monocistronic nature of IdhL.

• Journal of Korean Library and Information Science Society
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• v.47 no.3
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• pp.187-211
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• 2016

The present study investigates the seventh and the eighth graders' perception of Free Learning Semester Programs offered by libraries by developing a survey questionnaire on students' needs for Free Learning Semester Programs of Libraries. The skills that middle school students want to improve in Free Learning Semesters are career exploration skills, and the type of Free Learning Semester that is most intensively implemented is career exploration activities. Programs are often offered in the form of experiential classes. Regarding the activities that the students want to participate during Free Learning Semester, the most preferred activities included field experience activity in the career exploration domain, cooking class in the student choice program, smartphone app development in club activities, design activity in the art domain, the badminton in the physical education domain, and using iPad in the information use skills. In addition, among the library programs in coordination with Free Learning Semester, the students liked the occupational experience program most. Future studies need to include the development and implementation of Free Learning Semester Programs based on students' opinions, and investigate their satisfaction with the Free Learning Semester Programs offered by libraries.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.25 no.4
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• pp.351-359
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• 2014

The field of information science has been documented in several ways during its existence and in some ways has mirrored that of other scientific disciplines during the same period. This article examines variables related to author gender of information science articles in American Documentation (AD) during its entire run, 1950 through 1969. Published by the American Documentation Institute, AD was a primary information science journal of its time, changing its name in 1970 to the Journal of the American Society for Information Science (JASIS), corresponding with the change of the parent organization's name to the American Society for Information Science (1968). AD was preceded by an earlier "information science" publication, the Journal of Documentary Reproduction (JDR), 1938-1942, issued by the American Library Association. Studies indicate that females contributed about 8% for the entire run of articles in JDR (1938-1942) and about 22% for the first twenty-seven years of JASIS (1970-1996). The present study explores the nature of female contributions to AD for the middle period (1950-1969). It has been determined that for the entire run of the journal under the name AD, female authors comprised about 17% of the contributors, which places their publishing percentage for this period between the earlier and later periods, thus expectedly filling the gap.

• Journal of Korean Library and Information Science Society
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• v.53 no.1
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• pp.31-54
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• 2022

The purpose of this study was to examine the actual state of the curriculum on how qualification training is organized and operated based on the operation case of the K University Education and Training Institute, which operated librarian teacher (level 1) qualification training was held during the summer vacation of 2021. As a result of the study, a total of 111 librarians participated in the actual qualification training, of which 50 librarian teachers (4 males, 46 females) were from elementary schools, 24 (4 males, 20 females) from middle schools, and 37 (5 males, 32 females) from high schools. In addition, the curriculum for qualification training consisted of core competencies and subjects that met the scope of the job of the 'learner strength development' and the 'librarian role statement', and the satisfaction ratio of the 111 librarian teachers who participated in the qualification training averaged 4.76 out of 5. Overall, the satisfaction was high, but it was suggested on the areas that were either the lowest or lower than average.

• Journal of Korean Library and Information Science Society
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• v.50 no.4
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• pp.405-428
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• 2019

This study discerned interactions that secondary students experience during their studies and information behaviors that explains their interactions. In addition, when young people collaborate with their friends, this study identified their actions, such as collecting, using, sharing, and generating information, and the social and cultural factors that influence the behavior. The research questions consisted of 'Radical Change Theory' focusing on the information behavior of the digital age youth and the type of radical change in the digital age. As a result of the research, the status of collaborative information behavior of middle and high school students was reflected in our educational reality. Students, however, approached and utilized various information sources, diversified their opinion sharing tools, and discovered channels that were different from adults and used them in information activities. Though not as anticipated, they suggested that the experience of collaboration helped the individual's growth.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.28 no.3
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• pp.175-196
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• 2017

The number of youth smartphone users has been increasing, and they use smartphone applications to satisfy their various types of information needs. Nevertheless, few researchers have addressed youth information behavior on applications. In this study, the author examined the application use behavior of youth in response to their work- and everyday life- information needs. The author collected 114 completed questionnaires from students enrolled in a middle school and a high school. The survey results show that participants' usage and perception of smartphone applications were high, and they were using information, entertainment, and communication applications to meet their information needs. In particular, their preference for application use differed by the type of information needs. Also, participants were considering cost, easiness, privacy policy, review, information quality, providers, interface design, and recommendation to choose applications. This study confirms the role of smartphone applications as an influential information source, and it also provides useful implications for educators and for application developers.

• Journal of Korean Library and Information Science Society
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• v.38 no.2
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• pp.147-164
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• 2007

The objective of this study is to examine the correlation of reading quantities in different developmental phases and various media(magazines, books, comic books). I surveyed reading quantifies in developmental periods, by questionnaires. As a methodology of empirical study, data was collected from 187 students at the Chonbuk National University. Statistical techniques of a Pearson Correlation Test were employed according to my hypotheses. The results of this survey are as follows: 1) reading quantities of general book of specific period is correlated with general book reading quantities of specific period. 2) reading quantities of magazine of specific period is correlated with magazine reading quantities of other period 3) reading quantities of comic book of specific period is correlated with comic book reading quantities of other period 4) correlation among reading quantity of middle school period and high school period is high.

• Journal of the Korean Society for Library and Information Science
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• v.50 no.1
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• pp.5-23
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• 2016

It has been shown that in the modern society, teenagers do not read a lot of books. As basic research in order to attract teenagers to reading activities, the effectiveness of booktrailers in affecting reading motivation of teenagers has been studied. As such, 121 middle school and high school students were surveyed with respect to their (1) basic awareness of reading and booktrailers, (2) awareness thereof after watching booktrailers, and (3) reader behaviour reaction applied to AIDMA & AISAS sub-elements. Results show booktrailers to be much more effective in reading motivation than printed media such as book reviews. The preferred booktrailer type is the storyline type. The preferred elements of booktrailers are the storyline, background music, video effects, with their preference in descending order. Also, in terms of the reader behaviour reaction of the teenagers, very positive responses appear across all areas including attention and interest in the book, memories of the book, desire to read the book, search for information, and production of booktrailers. These results indicate that booktrailers can be utilized very effectively in providing reading motivation and in reading expression activities.

• Journal of the Korean Society for Library and Information Science
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• v.55 no.3
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• pp.343-372
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• 2021

The purpose of this study is to select keywords that can recommend books by personality type, and to test whether the chosen keywords can be actually used in the categorization and customized recommendation of books for each personality type. To achieve the research goal, this study chose books that match the level of fifth and sixth grade elementary school students and first grade middle school students and commissioned an expert group to categorize the books into groups that are preferred by each personality type. As a result of the classification, half of the books in which more than five experts agreed showed high consensus. In addition, the results of classifying books by personality type with keywords extracted by the automatic word extraction system by collecting the book review data of the selected books were similar to the results of the final judgement by the expert group, except for a few books. In conclusion, this study proved that it is possible to classify and recommend books that are likely to be preferred by different personality types using review keywords.

• Journal of the Korean Society for Library and Information Science
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• v.58 no.2
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• pp.57-80
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• 2024

Eisner emphasized the importance of problem-solving objectives and expressive objectives in addition to behavioral objectives, and communication through multiple modalities including linguistic, visual, aural, spatial, gestural modes. This study analyzes 'Libraries and Information Life,' a textbook developed for information literacy instruction, by dividing it into educational objectives types(behavioral, problem-solving, expressive) and multimodal modes(linguistic, visual, auditory, spatial, and gestural), and seeks to derive implications for setting educational objectives for information literacy instruction and developing textbooks. The textbook has four volumes for elementary low-grade, elementary high-grade, middle school, and high school levels. Educational objectives were extracted from the textbooks, and 3 librarian-teachers were engaged in the analysis of these objectives. The main findings and implications of this study are as follows. First, when looking at the types of educational objectives, the proportion of behavioral objectives was found to be excessively high, and there is a need to strengthen the proportion of problem-solving objectives and expressive objectives. Second, problem-solving objectives tend to overlap with behavioral objectives, indicating a need to develop problem-solving objectives with defined conditions and solution requirements. Third, expressive objectives concentrated in specific units need to be placed evenly in other units. Fourth, in the case of multi-modality mode, the proportion of the linguistic mode must be reduced, the proportion of the visual, auditory, spatial, and gestural modes must be increased, and it is necessary to set educational objectives with clear characteristics of each mode.