• Title/Summary/Keyword: further study

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Phenazine and 1-Undecene Producing Pseudomonas chlororaphis subsp. aurantiaca Strain KNU17Pc1 for Growth Promotion and Disease Suppression in Korean Maize Cultivars

  • Tagele, Setu Bazie;Lee, Hyun Gu;Kim, Sang Woo;Lee, Youn Su
    • Journal of Microbiology and Biotechnology
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    • v.29 no.1
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    • pp.66-78
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    • 2019
  • In this study, strain KNU17Pc1 was tested for its antifungal activity against Rhizoctonia solani AG-1(IA), which causes banded leaf and sheath blight (BLSB) of maize. KNU17Pc1 was tested further for its broad-spectrum antifungal activity and in vitro plant growth promoting (PGP) traits. In addition, the in vivo effects of KNU17Pc1 on reduction of BLSB severity and seedling growth promotion of two maize cultivars under greenhouse conditions were investigated. On the basis of multilocus sequence analysis (MLSA), KNU17Pc1 was confirmed as P. chlororaphis subsp. aurantiaca. The study revealed that KNU17Pc1 had strong in vitro antifungal activity and was effective toward all in vitro PGP traits except phosphate solubilization. In this study, for the first time, a strain of P. chlororaphis against Colletotrichum dematium, Colletotrichum gloeosporioides, Fusarium oxysporum f.sp. melonis, Fusarium subglutinans and Stemphylium lycopersici has been reported. Further biochemical studies showed that KNU17Pc1 was able to produce both types of phenazine derivatives, PCA and 2-OH-PCA. In addition, solid phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) analysis identified 13 volatile organic compounds (VOCs) in the TSB culture of KNU17Pc1, 1-undecene being the most abundant volatile. Moreover, for the first time, Octamethylcyclotetrasiloxan (D4), dimethyl disulfide, 2-methyl-1,3-butadiene and 1-undecene were detected in P. chlororaphis. Furthermore, this study reported for the first time the effectiveness of P. chlororaphis to control BLSB of maize. Hence, further studies are necessary to test the effectiveness of KNU17Pc1 under different environmental conditions so that it can be exploited further for biocontrol and plant growth promotion.

A Study on Book Reviews for Further Readings (심화독서용 서평에 관한 연구)

  • Min, Kyeong-Rok
    • Journal of the Korean Society for Library and Information Science
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    • v.52 no.3
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    • pp.35-59
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    • 2018
  • A book review expands readers' choice of resources by providing them with the contents and bibliographic data of various books. It also functions as a reader support service designed to enrich their reading experiences. In particular, in the field of children's reading, literary devices are used to convey knowledge and information to children. Therefore, a review for a children's book should help children follow a book with further readings so that they can expand their literary imagination through comparative reading. In light of the above, this study looks into the case of a children's story entitled Little Red Riding Hood to identify the points that should be addressed in the "Literature Comparison" section of a book review in order to suggest further readings to readers. First, the review should provide an objective description of the content of Little Red Riding Hood. Second, it should explain the literary value of the reviewed book and the discourse that surrounds it so as to analyze its unique features that separate it from other literary works. Third, the review should provide bibliographic information on other works that use narrative structures adapted from those of Little Red Riding Hood. Fourth, it should broaden readers' choice and access by introducing, if any, works adapted from Little Red Riding Hood into other media.

Traditions of Western Rhetoric and Daesoon Jinrihoe: Prolegomena to Further Investigations

  • FEHLER, Brian
    • Journal of Daesoon Thought and the Religions of East Asia
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    • v.1 no.2
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    • pp.133-157
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    • 2022
  • Applying the long and distinguished heritage of rhetorical theory to any sacred text, such The Canonical Scripture of Daesoon Jinrihoe, could fill many volumes of many books. This study, then, will provide some suggestive prolegomena for directions rhetorical criticism of the Scripture can take, now and in future research. This study will, further, make necessarily broad strokes in order to familiarize audiences and scholars of new Korean religions, and Eastern thought generally, with Western, both ancient and more modern, modes of rhetorical thought. As rhetorical criticism is increasingly embraced by Western religious scholarship, and as comparative religious studies remain an important dimension of textual scholarship, this article will contribute to both areas by presenting perhaps the first rhetorical-critical approach to the sacred scriptures of Daesoon Jinrihoe. When the new English translation of the Scriptures becomes available in the West, general and scholarly readers will be interested to find parallels and departures with religious and critical traditions with which they are already familiar (in this case, early American Protestant Calvinism). This study will make contributions, then, to the areas of rhetorical-religious criticism, comparative East-West presentations of nature within scriptural contexts, and establishment of grounds for further comparative investigations of Western traditions and Daesoon Jinrihoe.

A Study on the Bencao Classification System in Materia Medica of East Asian Medical History (역대 본초서(本草書)의 본초분류체계에 대한 연구)

  • Baek Myunghun;Shin Sang-won
    • Journal of Korean Medical classics
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    • v.36 no.3
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    • pp.89-128
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    • 2023
  • Objectives : This study aims to diachronically examine the classification systems of all materia medica, followed by categorization and analysis of each category to deduce each category's characteristic. This will provide foundation for further examining classifications of bencao in contemporary herbology. Methods : Classification systems from a total of 93 bencao related texts were collected and categorized. Each category's classification system was analyzed to determine its meaning. The classification systems were compared from a diachronic perspective, to further deduce each system's problem from a historical context. Results : The classification systems of materia medica could be summarized as following three standards: quality, origin, and medical application. In reality, bencao could be generally classified according to origin and medical application. The origin-based classification system provided a stable and flexible classification outline in the expansion process of bencao. The medical application-based classification strengthened the relationship between bencao and illness pattern, improving clinical applicability. Conclusions : In the history of herbology, the two classification systems created the current of herbology through mutual contribution and conflict. We hope that further discussion on the direction towards which classification system of bencao in contemporary herbology should head will proceed based on this study.

An Analysis of Inquiry Context Elements in the High School Science Textbooks (고등학교 과학 교과서의 탐구상황요소 분석)

  • Kim, Young-Ae;Sung, Min-Wung
    • Journal of The Korean Association For Science Education
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    • v.23 no.1
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    • pp.47-56
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    • 2003
  • The present study was carried out to analyse the frequency(%) for five kinds of inquiry context elements for six kinds of the high school science textbooks in the 7th curriculum. All the elements was classified into three process achievement level such as the basic, supplementary and further level introduced firstly in the 7th curriculum. Five elements of the inquiry context categories appeared as pure scientific context(61.8%), everyday context(22.2%), natural environmental context(7.7%), techno-industrial context(5.9%), and social context(2.4%) in the basic, supplementary and further level. Social context wasn't appeared in the supplementary level. In five elements of inquiry context, total elements appeared 7,139(85.5%) kfrequencies in the basic level and 691(8.1%) frequencies in the further level. However total elements appeared 529(6.4%) frequencies in the supplementary level. The kinds and frequencies of the elements for the inquiry context suggested in the basic level were more than those in the supplementary and in the further level. The social context was not appeared in the supplementary level. However five inquiry context elements were all appeared in the basic and further level.

Usefulness of the Korean Developmental Screening Test for infants and children for the evaluation of developmental delay in Korean infants and children: a single-center study

  • Yim, Chung-Hyuk;Kim, Gun-Ha;Eun, Baik-Lin
    • Clinical and Experimental Pediatrics
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    • v.60 no.10
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    • pp.312-319
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    • 2017
  • Purpose: To evaluate the usefulness of the Korean Developmental Screening Test (K-DST) for infants and children for developmental delay assessment. Methods: This study was based on retrospective studies of the results of the K-DST, Preschool Receptive-Expressive Language Scale (PRES), Sequenced Language Scale for Infants (SELSI), Childhood Autism Rating Scale (CARS), Modified Checklist for Autism in Toddlers (M-CHAT), electroencephalography, magnetic resonance imaging, and extensive tests conducted in 209 of 1,403 patients, of whom 758 underwent the K-DST at the Korea University Guro Hospital between January 2015 and December 2016 and 645 were referred from local clinics between January 2015 and June 2016. Results: Based on the K-DST results, the male children significantly more frequently required further or follow-up examination than the female children in most test sections, except for gross motor. The male children had notably lower mean scores than the female children. The PRES/SELSI results showed that when more further or follow-up evaluations were required in the K-DST communication section, significantly more problems in language delay or disorder emerged. When further or follow-up evaluation was required in the cognitive section in the CARS/M-CHAT, the possibility of autism increased significantly. A child tended to score low in the CARS test and show autism when further or follow-up evaluation was recommended in the K-DST. Conclusion: This study demonstrated the usefulness of the K-DST as a screening test early in the development of infants and children in Korea. Data of normal control groups should be examined to determine the accuracy of this investigation.

Global Tribology Research Output (1998 - 2012): A Macro Level Scientometric Study

  • Elango, B.;Rajendran, P.
    • Journal of Information Science Theory and Practice
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    • v.3 no.4
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    • pp.35-48
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    • 2015
  • The aim of this study is to compare country output and citation impact as well as to assess the level of interdisciplinarity in the field of tribology research during the period 1998-2012, based on the SCOPUS database. Macro-level scientometric indicators such as growth rate, share of international collaborative papers, citation per paper, share of un-cited papers, and publication efficiency index were employed. Further, the Simpson Index of Diversity was used to measure the level of interdisciplinarity. The performance of top countries contributing more than 1000 papers during the study period was discussed. Contributions and share of continents and countries by income groups were examined. Further research contributions and citation impact of selected country groups were analyzed. This study reveals that high levels of interdisciplinarity exist in tribology research. Asia outperforms the other world regions and China contributes most of the papers (25%), while the United States receives most of the citations (22%).

A Study on the Relations Between Physical Exercise and Quality of Life in Middle-aged Adults (중년기 성인의 운동실천과 삶의 질)

  • Han Su Jeong
    • Journal of Korean Public Health Nursing
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    • v.18 no.1
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    • pp.14-26
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    • 2004
  • Purpose: This study was done to identify the relationship between physical exercise and quality of life in middle-aged adults. Method: The subjects of this study consisted of 251 mid-aged adults who lived in D city and N city. The instrument for this study was exercise performance scale by Kim and QOL scale by Ro. Data were collected form February 20 to March 20. 2003. Result: 1. Among participants. 'good' exercise performance consisted $39.2\%$ and exercise involvement was $41\%$. 2. The quality of life showed positive significant correlation with the exercise performance(r=.21. p=.00). 3. Exercise performance was a predictor of quality of life and $8.3\%$ of the variance explained with exercise performance. Conclusion: The results of this study suggest that further development and applying of exercise performance programs are recommended for quality of life of mid-aged adults. In addition. further research needs to be done to identify relationship with these factors for various age group.

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Design of PCD Adjustment Device and Motion Study of Tire Replacements (PCD 조절기계 설계 및 타이어 교체작업의 동작 분석)

  • Lee, Tae Hwan;Jeon, Tae Bo
    • Journal of Industrial Technology
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    • v.31 no.A
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    • pp.11-19
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    • 2011
  • A new PCD (Pitch Circle Diameter) adjustment system has been designed in this study. Traditional system requires repetitive same works in changing automobile tires. The system proposed in this study requires just one simultaneous work to finish the job. We designed the system using Solidworks CAD software. We further investigate the jobs for both cases through work factor method. Based on careful clarification of the job, work factor units were assigned to each work factor. Even if further analysis should be processed for actual field application, the mechanism proposed in this study may provide good reference for practical usage.

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A proposed cultural competence training program for nurses based on their transcultural self-efficacy

  • Jin, Ju-hyun;Cleofas, Jerome V.
    • International Journal of Advanced Culture Technology
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    • v.6 no.2
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    • pp.86-99
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    • 2018
  • This study examined the relationship between the demographic profiles of 260 staff nurses in the SPC Health Care Ministry Hospitals and their Transcultural Self-Efficacy (TSE) level on the Cognitive, Practical and Affective dimensions. To obtain the result, among the nine (9) demographic profile items, three (3) common positive predictors were considered, namely, 1) Educational attainment level; 2) Age; and 3) Willingness to work abroad in all three dimensions. While in the Practical and Affective dimensions, the number of years employed were a common negative predictor and in the Affective dimension, Gender of participants was added as the positive predictor. Therefore, there are some significant demographic characteristics of respondents influence to the transcultural self-efficacy. Further, based on the results of this diagnostic study, the researcher designed the One (1) year Cultural Competence Training Program for staff nurses. For future research, the researcher recommended to conduct a further study that will evaluate the effectiveness of the educational intervention by approaching a longitudinal study form administering the test and retest of TSET.