• 제목/요약/키워드: prospective studies

검색결과 816건 처리시간 0.033초

대한한의학회지 및 대한한의학회 산하 정회원 학회의 학술진흥재단 등재지에 대한 비염 임상연구의 체계적 고찰 (A Systematic Review from the Journals under the Korean Oriental Medical Society)

  • 이규선;박동희;김계은;방지현;김재환;최준용;정희재;정승기
    • 대한한의학회지
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    • 제31권5호
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    • pp.1-11
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    • 2010
  • Objectives: This study aimed to evaluate any clinical studies regarding rhinitis published by the Korean Oriental Medical Society and its sub-societies for future rigorous clinical research. Methods: Every article relevant to rhinitis was initially obtained from journals of the Korean Oriental Medical Society and its sub-societies by electronic search at journal web sites or manual searches. Journals were limited to those registered with the Korea Research Foundation. From initial findings, two independent reviewers selected clinical articles and these articles were further analyzed separately by predefined criteria according to prospective and retrospective studies. For prospective studies, quality assessment was also conducted. Results: From 36 initially obtained articles, 17 were finally analyzed. 2 articles were randomized controlled studies, 6 articles were prospective whereas 9 were retrospective. In the prospective articles, there were no randomized controlled trials and the other non-randomized studies had no control group with several problems of quality regarding pre-calculated study size and unbiased assessment. None of the retrospective studies described rhinitis diagnosis objectively and outcome measures were either non-relevant to rhinitis or non-validated. Conclusions: Further well-designed randomized controlled studies for rhinitis are mandatory and more rigorous non-randomized controlled studies should be conducted.

Physical Activity and Risk of Lung Cancer: A Meta-Analysis of Prospective Cohort Studies

  • Sun, Jia-Yang;Shi, Lei;Gao, Xu-Dong;Xu, Shao-Fa
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권7호
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    • pp.3143-3147
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    • 2012
  • Background: Previous studies investigating the association of physical activity with risk of lung cancer reported conflicting results. In order to update and improve available evidence on any link, a meta-analysis was performed. Method: We searched the PubMed database for prospective cohort studies investigating the relation of physical activity with risk of lung cancer. The pooled relative risk (RR) with its 95% confidence intervals (95%CI) was used to assess the association. Results: We included 14 prospective studies with a total of 1,644,305 participants, with 14,074 incident lung cancer cases documented during follow-up. Meta-analysis of all 14 studies suggested both high and medium levels of physical activity to be associated with decreased risk of lung cancer compared to the reference group with low level of physical activity (for high level, RR = 0.77, 95%CI 0.73-0.81, P < 0.001; for medium level, RR = 0.87, 95%CI 0.83-0.90, P < 0.001). Subgroup analyses by gender found obvious associations in both men and women. No publication bias was observed. Conclusion: Our findings suggest that high and medium levels of physical activity have a beneficial effect on lung cancer by reducing the overall risk of tumour development among both men and women.

Mushroom consumption and cardiometabolic health outcomes in the general population: a systematic review

  • Jee Yeon Hong;Mi Kyung Kim;Narae Yang
    • Nutrition Research and Practice
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    • 제18권2호
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    • pp.165-179
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    • 2024
  • BACKGROUND/OBJECTIVES: Mushroom consumption, rich in diverse nutrients and bioactive compounds, is suggested as a potential significant contributor to preventing cardiometabolic diseases (CMDs). This systematic review aimed to explore the association between mushrooms and cardiometabolic health outcomes, utilizing data from prospective cohort studies and clinical trials focusing on the general population, with mushrooms themselves as a major exposure. SUBJECTS/METHODS: All original articles, published in English until July 2023, were identified through searches on PubMed, Ovid-Embase, and google scholar. Of 1,328 studies, we finally selected 5 prospective cohort studies and 4 clinical trials. RESULTS: Existing research is limited, typically consisting of 1 to 2 studies for each CMD and cardiometabolic condition. Examination of articles revealed suggestive associations in some cardiometabolic conditions including blood glucose (both fasting and postprandial), high-density lipoprotein cholesterol related indices, high-sensitivity C-reactive protein, and obesity indices (body weight, body mass index, and waist circumference). However, mushroom consumption showed no association with the mortality and morbidity of cardiovascular diseases, stroke, and type 2 diabetes, although there was a potentially beneficial connection with all cause-mortality, hyperuricemia, and metabolic syndrome. CONCLUSION: Due to the scarcity of available studies, drawing definitive conclusions is premature. Further comprehensive investigations are needed to clarify the precise nature and extent of this relationship before making conclusive recommendations for the general population.

웹문서 검색을 위한 온톨로지 버전 제어 (Ontology Version Control for Web Document Search)

  • 김병곤
    • 디지털산업정보학회논문지
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    • 제9권3호
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    • pp.39-48
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    • 2013
  • Ontology has an important role in semantic web to construct and query semantic data. When system make changes to ontologies, questions arise about versioning of these changes. Applying this changes on a dynamic environment is even more important. To apply these changes, change specification method is needed. Early studies show RDF-based syntax for the operations between old and new ontologies. When several ontology versions can be used for some query, if possible, using possible newest version ontology with prospective use is best way to process the query. Prospective use of ontology means using a newer version of an ontology with a data source that conforms to a more recent ontology. In this paper, for prospective use of ontology version, structure of change specification of class and property through several ontology versions is proposed. From this, efficient adaptive ontology version selection for a query can be possible. Algorithm for structure of version transition representation is proposed and simulation results show possible newest version number for queries.

수행평가의 실태와 문제점 탐색을 통한 근본적 대안 모색 (Exploring Fundamental Alternative through the Present Conditions and Problems of Performance Test)

  • 안효일
    • 수산해양교육연구
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    • 제25권2호
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    • pp.307-320
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    • 2013
  • The purpose of this study is to inquire into present conditions and problems of current performance test and to try to come up with a fundamental alternative of it. Eventually, the studies of performance test so far can be labelled 'prescription' as a prospective approach. On the contrary, the fundamental alternative can be labelled 'understanding' as a retrospective approach. It can be seen that these 'prescription' and 'understanding' do not separate but represent both extreme ends of problem-solving.'Prescription' exists for 'understanding' and the latter can be acquired through the former. Just under this assumption, it can be accepted that 'prescription' as a prospective approach of performance test is an inevitable measure to achieve the purpose of it. However, the ultimate purpose of 'prescription' should proceed to 'understanding' as a retrospective approach.

학생평가 전문성을 갖춘 수학교사 양성을 위한 "수학학습평가" 강좌의 교육 내용과 방법에 대한 제안 (Suggestion of Implementing "Assessment of Mathematics Learning" Class for Educating Prospective Teachers)

  • 김선희
    • 대한수학교육학회지:학교수학
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    • 제8권3호
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    • pp.301-326
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    • 2006
  • 학생평가 전문성은 교사들에게 실질적으로 필요한 능력이며 그 질적 제고에 대한 요구가 사회적으로 증대되고 있다. 본 연구는 사범 대학에서 학생평가 전문성을 갖춘 수학 교사를 양성하기 위하여 어떤 노력이 필요한지를 제안하고자 했다. 이를 위해 사범대학에서의 평가 관련 강좌 개설의 현황을 조사하였고, 현장 교사들이 학생평가 활동에서 어떤 어려움이 있는지를 면담을 통해 살펴보았다. 그리고 국가 수준에서 제시된 교사의 학생평가 전문성 기준에 비추어 예비교사들이 알아야 할 교육 내용을 제안하고 그 교육 방법을 논하였다. 수학학습평가 강좌는 교과교육학의 필수 과목으로 수학 교사들이 현대 수학교육이론에 더하여 학교 현장에서 실제 업무를 수행할 수 있도록 개설되어야 할 것이다.

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예비 교사들의 맥락 문제 해결 과정 분석 (A Study on the Process of Solving Context Problems by Prospective Teachers)

  • 신보미
    • 대한수학교육학회지:수학교육학연구
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    • 제22권4호
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    • pp.535-555
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    • 2012
  • 이 연구는 예비 교사들의 맥락 문제 해결 과정을 분석함으로써 맥락 문제에 대한 우리나라 교사들의 교과 내용 지식과 관련된 특징을 살피려는 목적에서 진행되었다. 문헌 검토를 통해 맥락의 의미를 살피고 맥락 문제가 갖추어야 할 조건을 추출하였다. 이렇게 추출된 맥락 문제의 조건에 비추어 선형 계획법을 배경 지식으로 하는 검사 문제를 개발하였으며 검사 결과 분석을 위한 주요 관점을 Illinois Department of Education(2005)의 평가 틀에 기초하여 '수학적 지식', '전략적 지식', '설명 능력'의 범주로 구체화하였다. 이렇게 구체화한 분석 관점과 평가 틀을 활용하여 각 예비 교사의 반응 결과에 점수를 부여한 다음 예비 교사들의 맥락 문제 해결 과정에서 드러나는 전반적인 경향을 살피고, 각각의 경향이 갖는 시사점을 검사 문제 개발 의도 및 선행 연구 결과에 비추어 분석하였다. 이상의 분석 결과로부터 예비 교사들의 맥락 문제 해결 과정에서 드러난 특징을 4가지로 요약하였다.

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또래와의 갈등 대처양식과 또래 괴롭힘의 가해·피해·친사회적 행동과의 횡·종단적인 관계 (Children Coping with Peer Conflict : Cross-Sectional and Longitudinal Correlates of Bullying, Victim, and Prosocial Behavior)

  • 심희옥
    • 아동학회지
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    • 제22권3호
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    • pp.49-61
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    • 2001
  • This study explored concurrent and prospective relationships of the coping strategies of 4th and 6th grade children in peer conflict focusing on bullying, victim, and prosocial behavior. Instruments were the Self-Report Coping Scale and the Peer Relations Questionnaire. Concurrent results of Study I showed children using more avoidance and fewer approach strategies were more likely to bullies or victims; and children using fewer avoidance and more approach coping strategies were more likely to be prosocial children. Externalizing best explained bullies and victims; seeking social support best explained prosocial children. Prospective results of Study II showed children using more externalizing and fewer problem solving were more likely to be bullies; and children employing internalizing and externalizing were more likely to be victims; and children using more seeking social support were more likely to be prosocial children. It was also found that externalizing at Time I best predicted bullies, internalizing best predicted victims, and seeking social support best predicted prosocial children.

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