• 과학교육연구지
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• 제39권3호
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• pp.389-403
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• 2015

이 연구의 목적은 과학수업 자기비평 과정에서 초등 교사의 경험을 탐색하고, 그 경험에서 드러난 반성 수준의 변화를 분석하는 것이었다. 이 연구는 질적 사례 연구로써, 2인의 초등 교사가 참여하였으며, 자신의 과학수업에 대한 반성적 글쓰기를 통하여 자기비평 과정을 거쳤다. 연구에 참여한 두 초등교사는 반성적 글쓰기를 통한 수업비평을 경험하면서 비평의 관점과 빈도에서 어느 정도의 변화를 보였는데, 그러한 변화는 각 교사의 수업 경험과 자신이 처한 교육적 상황에 따라 차이가 나타났다. 수업비평에 따른 피드백에 의해 나타나는 반성의 수준은 두 교사 모두에게서 높은 수준으로의 큰 변화를 보였는데, 수업에 대한 인식의 긍정적 변화나 학생에 대한 이해, 동료 교사의 수업 관찰과 같이 수업의 실천에 영향을 주는 요인에 대한 인식은 수업 중 반성 혹은 수업 후의 반성을 통해 실천적 지식을 지속적으로 수정 보완하여 결과적으로 반성의 수준을 높이는데 기여하였다.

• 한국학교ㆍ지역보건교육학회지
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• 제18권2호
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• pp.27-42
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• 2017

Objectives: The purpose of this study was to investigate the characteristics of smoking prevention programs and their effectiveness for Korean school-aged children and adolescents by using systematic review and meta-analysis. Methods: Electronic searches were performed in RISS, NAL, DBPia, KISS using keywords according to inclusion criteria. 21 studies published from 2003 to the first half of 2017 that dealt with effects of smoking prevention programs for school-aged children and adolescents were selected for systematic review. Results: All 21 studies were quasi-experimental research designs. More than half of the programs(66.7%) were conducted for male and female. Most of the programs were conducted more than once a week(71.4%). 14 studies(66.7%) did not report using a theoretical model. Five dependent variables(knowledge of smoking, attitude toward smoking, non-smoking intention, self-assertiveness, and self-efficacy) were selected to measure the effectiveness of the smoking prevention programs. Knowledge of smoking was the most effective at hedge's g=0.673. Self-efficacy and self-assertiveness variables were statistically significant at hedge's g=0.461 and hedge's g=0.279, respectively. Effect sizes of attitude toward smoking and non-smoking intention were not statistically significant compared to the control group. As a result of the moderator effect analysis on the knowledge of smoking variable, the statistically significant variables were 'gender of participants'(p<0.01) and 'duration of the program'(p<0.001). Conclusions: The results of this study using systematic review and meta-analysis will be evidence-based data for researchers conducting smoking prevention programs in school-aged children and adolescents.

• 한국간호교육학회지
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• 제26권2호
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• pp.111-122
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• 2020

Purpose: In the Fourth Industrial Revolution, nursing education will change in a different way than before. The purpose of this study was to analyze characteristics of qualitative research on learning experiences for nursing students, and to suggest directions for nursing education geared to the needs of the future. Methods: An integrative review method was used. Based on Whittemore & Knafl's approach, five steps were applied. Results: Eleven papers met the selection criteria and had above average ratings in quality appraisals. Three characteristics related to the learning experiences of nursing students were derived: (1) overcoming difficulties in the learning process and concentrating on problem-solving, (2) improving self-efficacy through experiencing achievement in the learning process, (3) establishing nursing professionalism, (4) identifying the importance of self-directed and self-reflected learning, and (5) developing teamwork. Conclusion: This review found that various learning experiences were conducted for practical experience and learner-oriented learning. Nursing students overcame difficulties to achieve their learning outcomes, and developed their professionalism. Further study is required to comprehensively explore research including other countries, and the experiences of instructors.

• 여성건강간호학회지
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• 제26권4호
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• pp.274-284
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• 2020

Purpose: The purpose of this study was to investigate the effects and characteristics of health care programs for pregnant women with gestational diabetes mellitus (GDM) in Korea. Methods: This study was conducted according to the Cochrane Collaboration's systematic literature review handbook and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses reporting guideline. We searched eight international and domestic electronic databases for relevant studies. Two reviewers independently selected the studies and extracted data. For each study, information on the research method, participants, characteristics of the program, and results were extracted using a previously established coding table. The National Evidence-based Healthcare Collaborating Agency's risk of bias assessment tool for non-randomized studies was used to assess the risk of bias of the included articles. A qualitative review of the selected studies was performed because the interventions differed considerably and the measured outcomes varied. Results: Out of 128 initially identified papers, seven were included in the final analysis. The risk of bias was evaluated as generally low. Health care programs for pregnant women with GDM showed positive effects on blood glucose control. Anxiety and depression were reduced, and self-management and self-care behavior, self-efficacy, and maternal identity improved. Conclusion: Our study provides clinical evidence for the effectiveness of health care programs for pregnant women with GDM, and its results can be used to support the development of health care programs for GDM. More well-designed research is needed on GDM, especially studies that deal with emotional stress and apply a family-oriented approach.

• Journal of Information Processing Systems
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• 제14권2호
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• pp.510-522
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• 2018

As the major source of information, digital images play an indispensable role in our lives. However, with the development of image processing techniques, people can optionally retouch or even forge an image by using image processing software. Therefore, the authenticity and integrity of digital images are facing severe challenge. To resolve this issue, the fragile watermarking schemes for image authentication have been proposed. According to different purposes, the fragile watermarking can be divided into two categories: fragile watermarking for tamper localization and fragile watermarking with recovery ability. The fragile watermarking for image tamper localization can only identify and locate the tampered regions, but it cannot further restore the modified regions. In some cases, image recovery for tampered regions is very essential. Generally, the fragile watermarking for image authentication and recovery includes three procedures: watermark generation and embedding, tamper localization, and image self-recovery. In this article, we make a review on self-embedding fragile watermarking methods. The basic model and the evaluation indexes of this watermarking scheme are presented in this paper. Some related works proposed in recent years and their advantages and disadvantages are described in detail to help the future research in this field. Based on the analysis, we give the future research prospects and suggestions in the end.

• Journal of Preventive Medicine and Public Health
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• 제52권6호
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• pp.377-383
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• 2019

Objectives: Self-reported disease history is often used in epidemiological studies. In this study, we acquired the hospital records of subjects who self-reported stroke or myocardial infarction (MI) and evaluated the validity of the participants' self-reported disease history. We also determined the level of agreement between specialists and non-specialists. Methods: Among the participants in the Health Examinees study, 1488 subjects self-reported stroke or MI during 2012-2017, and medical records were acquired for the 429 subjects (28.8%) who agreed to share their medical information. Each record was independently assigned to 2 medical doctors for review. The records were classified as 'definite,' 'possible,' or 'not' stroke or MI. If the doctors did not agree, a third doctor made the final decision. The positive predictive value (PPV) of self-reporting was calculated with the doctors' review as the gold standard. Kappa statistics were used to compare the results between general doctors and neurologists or cardiologists. Results: Medical records from 208 patients with self-reported stroke and 221 patients with self-reported MI were reviewed. The PPV of self-reported disease history was 51.4% for stroke and 32.6% for MI. If cases classified as 'possible' were counted as positive diagnoses, the PPV was 59.1% for stroke and 33.5% for MI. Kappa statistics showed moderate levels of agreement between specialists and nonspecialists for both stroke and MI. Conclusions: The validity of self-reported disease was lower than expected, especially in those who reported having been diagnosed with MI. Proper consideration is needed when using these self-reported data in further studies.

• 디지털융복합연구
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• 제17권8호
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• pp.347-355
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• 2019

본 연구는 체계적문헌고찰과 메타분석을 활용하여 인터넷중독 예방프로그램이 청소년의 자기통제력에 미치는 효과를 산출하는 것이다. 검색한 국내문헌의 자료를 살펴보면, 국회도서관, 한국교육학술정보원, 한국학술정보원 및 각종 국내학회지를 사용하였으며, 그중 2018년까지의 검색결과 11개의 문헌으로 메타분석을 실시하였다. 메타분석의 결과로써, 인터넷중독 예방프로그램에 대한 청소년의 자기통제력의 전체효과크기는 통계적으로 유의한 차이를 나타냈으나 이질성이 높아 하위집단분석을 실시하였다. 대상자유형에 따른 인터넷중독 예방프로그램의 자기통제력에 대한 효과크기는 초등학생과 중고등학생 모두에서 통계적으로 유의하였다. 인터넷중독 여부에 따른 자기통제력의 대한 효과크기는 정상그룹에서는 통계적으로 유의하였다. 본 연구결과를 바탕으로 초등학생과 중고등학생의 특성에 따른 인터넷중독 예방프로그램의 개발이 필요하다고 사료된다.

• 한국지하수토양환경학회지:지하수토양환경
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• 제26권6호
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• pp.1-17
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• 2021

Self-potential (SP) surveys measure naturally occurring differences in electrical potential in the absence of artificial sources and have been applied to various fields since the first application in mineral explorations. Among various causes of SP occurrences, streaming potential is generated by the flow of groundwater, and makes SP surveys suitable for the exploration of groundwater table fluctuation, fractures, sinkholes and landslide occurrences. Recently, there has been many studies that applied SP surveys to monitor water leakage through dikes and embankments. In this review paper, we first review the characteristics and theoretical backgrounds of streaming potential in saturated or unsaturated porous media to introduce it in the embankment among various application field. After the review of the background theory, we review the past cases of field SP surveys on dikes and embankments and also the characteristics of field streaming potential data in the surveys. Further, by analyzing past studies of qualitative as well as quantitative interpretation of SP survey data, we show the possibility of quantitative interpretation of streaming potential data obtained on dikes and embankments. Consequently, it is hope that this review paper helps researches on SP surveys on dikes and embankments, and provides basis for interpretation methods of the SP data to identify leaked area and further leakage rate (or permeability).

• 출판저널
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• 통권328호
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• pp.98-99
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• 2003

• 출판저널
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• 통권329호
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• pp.122-125
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• 2003