• Title/Summary/Keyword: Review of Research

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A Literature Review on Reading Fluency (읽기 유창성에 관한 문헌연구)

  • Lee, Suhyang
    • Phonetics and Speech Sciences
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    • v.4 no.4
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    • pp.129-138
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    • 2012
  • Reading fluency is an important variable in reading comprehension. However, a limited number of studies on reading fluency are available in Korea. The purpose of this study is to review the articles about reading fluency during last 10 years and to present a direction for future research. Forty research papers from the Journal of Learning Disabilities and Language Speech and Hearing Services in Schools were selected from 2002 to 2012. These papers were analyzed in terms of their subjects and research methods. About 64% of the articles focused on typically developing children and children with dyslexia. About 67% of the research consisted of descriptive studies. Based on these results, suggestions were made for future research on reading fluency.

Factors and Implications for Creative Scientists: A Systems View of Creativity

  • Kim, Wangdong
    • STI Policy Review
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    • v.1 no.2
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    • pp.33-50
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    • 2010
  • This study examines three factors - personal, academic features and governmental research environment - that influences the research of creative scientists based on a Systems Model of Creativity and tries to deprive policy implications. First, this study investigates the characteristics of creative scientists' research through a literature review. Next, it analyzes the features of academic characteristics, and creative research environments by the interviews of nine creative scientists in Korea. Lastly, it draws its implications and analyzes the limitations of this research.

An Exploration of GDSS Research Areas Through the Review of "groupthink" Literature (집단사고의 이론적고찰을 통한 GDSS 연구영역의 탐색)

  • Choe, Mu-Jin;Son, Dal-Ho
    • Asia pacific journal of information systems
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    • v.3 no.1
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    • pp.88-124
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    • 1993
  • This paper reviewed major GDSS literatures from the "groupthink" standpoint, proposed a new framework for GDSS research, and suggested research issues. Despite a sizable amount of GDSS research for a dacade, the results tend to lack consistency, and still more studies are needed in many areas. One way to overcome the limitations is the thorough review of GDSS literatures and "groupthink" theories. Especially, groupthink/decision-making literatures provide many useful insights and guidelines for further exploring new GDSS research areas.

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The Role of Operations Research/Systems Analysis in Defence Policy and Programming Decisions

  • Trost C.A.H
    • Journal of the military operations research society of Korea
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    • v.5 no.1
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    • pp.7-15
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    • 1979
  • The very fact that so many of us are here to participate in this conference on Operations Research is an indicator of the importance we attach to this relatively new and still expanding field. All of us recognize that Operations Research techniques are especially useful tools in problem solving in business, Government and the military. A discussion of the role of Operations Research and the related field of Systems Analysis in national defense policy and programming decision processes seems especially appropriate at the opening session of this conference, As you know, Operations Research as an organized form of research first found application in the review of individual military weapons systems and their effectiveness just over forty years ago. From that relatively narrow beginning has evolved a discipline whose future exploitation and utility you will explore over the next several days. I plan to review very briefly the historical development of Operations Research and Systems Analysis as tools in the defense decision-making process. Then, I will give you an overview of their application to today's military and defense problem solving by discussing the use of these techniques at the headquarters level by the United States Navy, Obviously, in such a brief period, I cannot cover all applications, specific techniques, or all of the groups involved in such a complex process. A review of the historical development of Operations Research/Systems Analysts reveals that the use of the basic concepts of Operations Research is not new; it originated with the first attempts to use the scientific approach to solve problems. We are still seeking, through modern analysis, to answer the three questions posed by John Dewey in his examination of the problem solving process in 1910.'1 - What is the problem? - What are the alternatives? - Which alternative is best? As I noted earlier, Operations Research, as an organized form of research, began in Great Britain in the late 1930s with the review of individual weapons systems.

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Review of Qualitative Research on Home Economics Education (가정과 교육에서의 질적 연구 동향과 과제)

  • 류상희
    • Journal of Korean Home Economics Education Association
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    • v.13 no.1
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    • pp.1-11
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    • 2001
  • Home economics education professional knowledge consists of empirical interpretive critical science component. Thus it is imperative that the alternative research perspectives be used to gain certain knowledge for the profession of home economics education. In human inquiry and education there is a growing concern that the dominant research paradigm positivist natural science model is inadequate to address the phenomena constructed by persons. However, Home economics education has not examined and almost utilized alternative research perspectives. This review will probe research logic and resecrach methodology of qualitative inquiry within home economics education and highlight the shift from positivism to post-positivism.

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Review on Gas-Voiding Models for HCDA(Hypothetical Core Disruptive Accident) Initiating Phase in LMR Analysis (I)

  • Chang, W.P.;Kwon, Y.M.;Hahn, D.H.;Suk, S.D.
    • Nuclear Engineering and Technology
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    • v.31 no.6
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    • pp.51-65
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    • 1999
  • The present review report introduces the existing analysis codes and physical modeling of two-phase flow associated with initiating event of HCDA in Liquid Metal Reactors for the effective study in the future, because the related research has not been systematically carried out in Korea compared with other areas. The description in this report is specifically addressed to the results yielded from careful review of the technical concepts on the two-phase flow modeling in the SAS2A code which was developed in ANL. The report is prepared in 2 parts based on the definite physical phenomena. The liquid slug and gas behavior models are main representations in the part (I) and (II), respectively. In this regard, it is expected that this report provide a fundamental knowledge on the two-phase flow model in LMR and, thus, contribute to establishment of the necessary HCDA analysis technology concerned with the LMR development in Korea.

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A Content Analysis of the Trends in Vision Research With Focus on Visual Search, Eye Movement, and Eye Track

  • Rhie, Ye Lim;Lim, Ji Hyoun;Yun, Myung Hwan
    • Journal of the Ergonomics Society of Korea
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    • v.33 no.1
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    • pp.69-76
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    • 2014
  • Objective: This study aims to present literature providing researchers with insights on specific fields of research and highlighting the major issues in the research topics. A systematic review is suggested using content analysis on literatures regarding "visual search", "eye movement", and "eye track". Background: Literature review can be classified as "narrative" or "systematic" depending on its approach in structuring the content of the research. Narrative review is a traditional approach that describes the current state of a study field and discusses relevant topics. However, since literatures on specific area cover a broad range, reviewers inherently give subjective weight on specific issues. On the contrary, systematic review applies explicit structured methodology to observe the study trends quantitatively. Method: We collected meta-data of journal papers using three search keywords: visual search, eye movement, and eye track. The collected information contains an unstructured data set including many natural languages which compose titles and abstracts, while the keyword of the journal paper is the only structured one. Based on the collected terms, seven categories were evaluated by inductive categorization and quantitative analysis from the chronological trend of the research area. Results: Unstructured information contains heavier content on "stimuli" and "condition" categories as compared with structured information. Studies on visual search cover a wide range of cognitive area whereas studies on eye movement and eye track are closely related to the physiological aspect. In addition, experimental studies show an increasing trend as opposed to the theoretical studies. Conclusion: By systematic review, we could quantitatively identify the characteristic of the research keyword which presented specific research topics. We also found out that the structured information was more suitable to observe the aim of the research. Chronological analysis on the structured keyword data showed that studies on "physical eye movement" and "cognitive process" were jointly studied in increasing fashion. Application: While conventional narrative literature reviews were largely dependent on authors' instinct, quantitative approach enabled more objective and macroscopic views. Moreover, the characteristics of information type were specified by comparing unstructured and structured information. Systematic literature review also could be used to support the authors' instinct in narrative literature reviews.

Analytical Techniques for Vancomycin - A Review

  • Avinash P. Sattur;Lee, Je-Hyuk;Song, Ki-Bang;T. Panda;Kim, Chul-Ho;Rhee, Sang-Ki;B. Gokul
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.5 no.3
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    • pp.153-158
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    • 2000
  • Vancomycin belongs to the vancomycin-risocetin family of glycopeptides, and is a subclass of linear sugar containg peptides composed of seven amino acids. Its strochemical configuration forms the basic of a peptidoglycon monomer. The glycosylated hexapeptide chainconsists of chloro-$\beta$-hydroxytyrosines, p-hytidoglycines, N-anthylleucine and aspartic acid forms a rigid molecular frame work and gives the difficulty in the analysis. Voncomycin in the serum samples is usually estimated by liquid chromatography and the bacterial sensitivity was genereally tested by the microbiological assay. The pressent review deals with the qualitative, quantutative, microbioligical and immunological assays and the comparison of the quantitative methods. Clinical implications of vancomycin have also been cited in the review.

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Quality Reporting of Systematic Review and Meta-Analysis According to PRISMA 2020 Guidelines: Results from Recently Published Papers in the Korean Journal of Radiology

  • Ho Young Park;Chong Hyun Suh;Sungmin Woo;Pyeong Hwa Kim;Kyung Won Kim
    • Korean Journal of Radiology
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    • v.23 no.3
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    • pp.355-369
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    • 2022
  • Objective: To evaluate the completeness of the reporting of systematic reviews and meta-analyses published in a general radiology journal using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines. Materials and Methods: Twenty-four articles (systematic review and meta-analysis, n = 18; systematic review only, n = 6) published between August 2009 and September 2021 in the Korean Journal of Radiology were analyzed. Completeness of the reporting of main texts and abstracts were evaluated using the PRISMA 2020 statement. For each item in the statement, the proportion of studies that met the guidelines' recommendation was calculated and items that were satisfied by fewer than 80% of the studies were identified. The review process was conducted by two independent reviewers. Results: Of the 42 items (including sub-items) in the PRISMA 2020 statement for main text, 24 were satisfied by fewer than 80% of the included articles. The 24 items were grouped into eight domains: 1) assessment of the eligibility of potential articles, 2) assessment of the risk of bias, 3) synthesis of results, 4) additional analysis of study heterogeneity, 5) assessment of non-reporting bias, 6) assessment of the certainty of evidence, 7) provision of limitations of the study, and 8) additional information, such as protocol registration. Of the 12 items in the abstract checklists, eight were incorporated in fewer than 80% of the included publications. Conclusion: Several items included in the PRISMA 2020 checklist were overlooked in systematic review and meta-analysis articles published in the Korean Journal of Radiology. Based on these results, we suggest a double-check list for improving the quality of systematic reviews and meta-analyses. Authors and reviewers should familiarize themselves with the PRISMA 2020 statement and check whether the recommended items are fully satisfied prior to publication.