• 제목/요약/키워드: meta database

검색결과 372건 처리시간 0.03초

Endovascular Treatment with Intravenous Thrombolysis versus Endovascular Treatment Alone for Acute Anterior Circulation Stroke : A Meta-Analysis of Observational Studies

  • Kim, Chul Ho;Jeon, Jin Pyeong;Kim, Sung-Eun;Choi, Hyuk Jai;Cho, Yong Jun
    • Journal of Korean Neurosurgical Society
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    • 제61권4호
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    • pp.467-473
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    • 2018
  • Objective : The aim of this study was to determine outcome of ischemic stroke patients in the anterior circulation treated with endovascular treatment (EVT) with intravenous thrombolysis (IVT) versus EVT alone group. Methods : A systemic literature review was performed using online database from January 2004 to January 2017. Primary outcomes were successful recanalization seen on finial angiography and good outcome at three months. Secondary outcomes were mortality and the development of symptomatic intracranial hemorrhage (S-ICH) after the procedure. A fixed effect model was used when heterogeneity was less than 50%. Egger's regression test was used to assess publication bias. Results : Five studies were included for final analysis. Between EVT with IVT and EVT alone group, successful recanalization (odds ratio [OR] 1.467, p=0.216), good clinical outcome at three months (OR 1.199, p=0.385), mortality (OR 0.776, p=0.371), and S-ICH (OR 1.820, p=0.280) did not differ significantly. Egger's regression intercept with 95% confidence interval (CI) was 1.99 (95% CI -2.91 to 6.89) in successful recanalization and -0.27 (95% CI -6.35 to 5.80) in good clinical outcome, respectively. Conclusion : The two treatment modalities, EVT with IVT and EVT alone, could be comparable in treating acute anterior circulation stroke. Studies to find specific beneficiary group for EVT alone, without primary IVT, are needed further.

암반에 근입된 현장타설말뚝의 주면지지력 (Side Shear Resistance of Drilled Shafts in Rock)

  • 권오성;김병철;김명모
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2005년도 춘계 학술발표회 논문집
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    • pp.611-618
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    • 2005
  • In this research, the effect of rock mass weathering on the side shear resistance of drilled shaft socketed into weathered rock was investigated. For that, a database of 23 cast-in-place concrete piles with diameters varying from 400mm to 1,500mm were socketed into weathered igneous/meta-igneous rock at four different sites. The static axial load tests were performed to examine the resistant behavior of the piles, and a comprehensive field/laboratory testing program at the field test site was also performed to describe the in situ rock mass conditions quantitatively. No correlation was found between the compressive strengths of intact rock and the side shear resistance of weathered/soft rock. The ground investigation data regarding the rock mass conditions (e.g. $E_m,\;E_{ur},\;_{plm}$, RMR, RQD, j) was found to be highly correlated with the side shear resistance, showing the coefficients of correlation greater than 0.7 in most cases. Additionally, the applicability of existing methods for the side shear resistance of piles in rock was verified by comparison with the field test data. The existing empirical relations between the compressive strength of intact rock and the side shear resistance(Horvath (1982), Rowe & Armitage(1987) etc.) appeared to overestimated the side shear resistance of all piles tested in this research unless additional consideration on the effect of rock mass weathering or fracturing was applied. The existing methods which consider the effect of rock mass condition were modified and/or extended for weathered rock mass where mass factor j is lower than 0.1, and RQD is below 50%.

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CNKI 검색을 통한 턱관절 장애 치료의 최신 연구 동향 (A Review of Recent Studies for Treatment of TMD Using CNKI Database)

  • 김정섭;김동은;정동훈;유선애;조성우
    • 한방재활의학과학회지
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    • 제26권2호
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    • pp.61-74
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    • 2016
  • Objectives The purpose of this research is to investigate recent clinical studies of Temporomandibular Joint Disorder in China. Methods We investigated recent clinical studies of Oriental Medicine therapies in traditional Chinese medical journals for Temporomandibular Joint Disorder through CNKI search. 20 clinical articles published from 2010 to 2015 were analyzed. This study examined the authors, published years, types of study designs, criteria for diagnosis and evaluation, periods, purposes of study and classified articles by techniques of treatment. Results Most of articles were classified as RCT. TMD was diagnosed by symptoms in a high proportion of articles. The criteria for evaluation that most frequently used were grading scale, but there was a lack of objectivity. The techniques of treatment were Tuina, acupuncture, herb medicine, electrotherapy, splint, PNF, congnitive behavior therapy, laser therapy, magnetic therapy. Conclusions In order to develop treatment of TMD in the Korean medicine, clinical studies for various therapies on a high level and cooperative studies between medical communities are needed.

충북N:사용자 위치 기반 뉴스 검색 시스템 (ChungbukN: An User Location based News Retrieval System)

  • 권순옥;정지성;김지훈;김희란;류관희
    • 한국콘텐츠학회논문지
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    • 제12권12호
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    • pp.524-532
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    • 2012
  • 스마트폰 가입자 수가 증가함에 따라 사용자의 편의를 제공하려는 다양한 분야의 애플리케이션이 등장하고 있다. 특히, 최근에는 위치 기반 서비스를 활용하여 사용자의 현재 위치에 따라 정보를 제공받는 방식의 애플리케이션이 많이 개발되고 있다. 또한, 뉴스의 경우 수많은 데이터 가운데 정작 필요한 정보를 제공받기 어렵다. 특히, 지역과 관련된 뉴스의 경우 거의 찾아보기 힘들다. 뉴스를 제공해주는 많은 애플리케이션이 있으나 국내에서 사용자의 위치 정보에 따른 뉴스 정보를 제공하는 시스템이 없어 사용자는 주변의 뉴스를 제공받기 힘들다. 본 논문에서는 스마트폰 사용자의 위치 정보를 사용해 주변 기사를 제공하는 애플리케이션 시스템을 제안한다. 이 시스템은 주변에서 일어난 기사내용을 제공하기 때문에 사용자가 필요한 주변 정보를 쉽게 알 수 있다는 장점을 가진다. 제안한 시스템은 충북 지역 종합일간지인 '충북일보'에서 기사 데이터를 받아 뉴스를 제공한다.

Adipofascial Anterolateral Thigh Flap Safety: Applications and Complications

  • Agostini, Tommaso;Lo Russo, Giulia;Zhang, Yi Xin;Spinelli, Giuseppe;Lazzeri, Davide
    • Archives of Plastic Surgery
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    • 제40권2호
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    • pp.91-96
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    • 2013
  • Background A thinned anterolateral thigh (ALT) flap is often harvested to achieve optimal skin resurfacing. Several techniques have been described to thin an ALT flap including an adipocutaneous flap, an adipofascial flap and delayed debulking. Methods By systematically reviewing all of the available literature in English and French, the present manuscript attempts to identify the common surgical indications, complications and donor site morbidity of the adipofascial variant of the ALT flap. The studies were identified by performing a systematic search on Medline, Ovid, EMBASE, the Cochrane Database of Systematic Reviews, Current Contents, PubMed, Google, and Google Scholar. Results The study selection process was adapted from the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement, and 15 articles were identified using the study inclusion criteria. These articles were then reviewed for author name(s), year of publication, flap dimensions and thickness following defatting, perforator type, type of transfer, complications, thinning technique, number of cases with a particular area of application and donor site morbidity. Conclusions The adipofascial variant of the ALT flap provides tissue to fill large defects and improve pliability. Its strong and safe blood supply permits adequate immediate or delayed debulking without vascular complications. The presence of the deep fascia makes it possible to prevent sagging by suspending and fixing the flap for functional reconstructive purposes (e.g., the intraoral cavity). Donor site morbidity is minimal, and thigh deformities can be reduced through immediate direct closure or liposuction and direct closure. A safe blood supply was confirmed by the rate of secondary flap debulking.

근치적 전립선적출술 후 요실금에 대한 케겔운동의 효과: 무작위 대조군 실험연구의 체계적 문헌고찰 (Effect of Kegel Exercise on Urinary Incontinence after Radical Prostatectomy: Systematic Review of Randomized Controlled Trials)

  • 박성희;조윤수;곽미정;이희선;강창범
    • 성인간호학회지
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    • 제25권2호
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    • pp.219-230
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    • 2013
  • Purpose: This study is reviewed of the available literature to identify the evidence of the value of Kegel exercise programs as an intervention to decrease urinary incontinence and the improvement of the quality of life following a radical prostatectomy in localized prostate cancer. Methods: We searched studies of randomized controlled trials that utilized the Kegel exercise programs with patient with a radical prostatectomy. The review was conducted electronic bibliographic database of Ovid-Medline, Embase, Scopus, KoreaMed and NDSL, etc. Of 630 publications identified, seven studies that met the inclusion criteria, and all studies analyzed by meta-analysis. To ensure the quality of the studies, we used Cochrane's Risk of Bias. Results: Kegel exercise helped patient to achieve continence more quickly (after 1, 3, 6, 12 months) than men not using Kegel exercises. Especially, Kegel exercise significantly reduced the development of urinary incontinence at one month after prostatectomy. The effectiveness of Kegel exercise after prostatectomy was found to improve the quality of life at a significant level. Conclusion: Based on available evidence, Kegel exercise that nurses can teach improved the return to continence more than usual care in men with prostatectomy urinary incontinence.

DBMS의 웹서비스를 이용한 학습객체 메타데이터 추출 및 통합에 관한 연구 (A Study on the Extraction and Integration of Learning Object Meta-data using Web Service of Databases)

  • 최현종
    • 정보교육학회논문지
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    • 제7권2호
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    • pp.199-206
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    • 2003
  • XML은 데이터 관리와 표현의 유연성으로 인해 웹의 새로운 개발 도구로 자리를 잡아가고 있으며, 컴퓨터 교육에서는 학습객체라는 많은 웹 컨텐츠들을 통합하는 도구로도 사용되고 있다. 하지만 학습객체를 통합하고 관리하는 온라인 학습 시스템을 구현하기에 앞서, 구현 시스템에서 학습객체를 처리하기 위한 메타데이터를 어떻게 저장하고 추출 및 통합하느냐의 연구가 선행되어져야 한다. 따라서 본 연구에서는 3-tier 방식의 온라인 학습 시스템과 메타데이터가 저장된 데이터베이스 서버를 구현할 때 필요한 메타데이터 추출방법의 하나로 DBMS의 웹서비스를 이용하는 방법을 제안하고자 한다. 제안된 방법의 효율성 측정을 위해 MS SQL Server 2000과 Oracle 9i를 대상으로 30여개의 샘플 메타데이터를 저장하고, 이를 추출하는 응답시간을 측정해 보았다. 이 방법을 사용하기 위해서는 추출된 메타데이터를 DOM/SAX 와 같은 XML 처리 파서가 필요하지만, 측정된 결과 비교적 빠른 응답시간을 보여 데이터베이스에 저장된 메타데이터를 추출하고 통합하는 한 방법으로 충분히 사용할 수 있다는 결과를 얻었다.

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산출물 추출 및 분류를 위한 Index/XML순서관계 시스템 설계 (A Design of Index/XML Sequence Relation Information System for Product Abstraction and Classification)

  • 선수균
    • 정보처리학회논문지D
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    • 제12D권1호
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    • pp.111-120
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    • 2005
  • 소프트웨어 개발은 다양한 산출물(클래스 부품, 클래스 다이어그램, 폼, 객체, 디자인 패턴)을 생성한다. 단 논문은 이런 산출물의 효율적인 추출 및 분류를 위한 Index/XML 순서관계 시스템을 제안한다. 이 시스템에서 산출물 순서 관계 추출은 패턴 관계정보를 메타 모델링 할 수 있으며 데이터베이스 할 수 있어 재사용 및 저장이 용이하다. 이 Index/XML 순서관계 시스템은 산출물의 추출과 분류를 위한 여러 가지 산출물의 관계 정보를 쉽게 변형할 수 있다. 이 시스템은 디자인 패턴을 효율적으로 분류 추출할 수 있도록 설계한다. 기능적인 인덱싱, 표준 패턴을 위한 순서 기준 인덱싱은 인덱스 아이디로 그룹화 할 수 있으며 분류할 수 있어 효과적이다. 이 정보론 이용하여 산출물들을 효과적으로 분류 및 추출을 할 수 있다.

Metaproteomic analysis of harmful algal bloom in the Daechung reservoir, Korea

  • Choi, Jong-Soon;Park, Yun Hwan;Kim, Soo Hyeon;Park, Ju Seong;Choi, Yoon-E
    • 환경생물
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    • 제38권3호
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    • pp.424-432
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    • 2020
  • The present study aimed to analyze the metaproteome of the microbial community comprising harmful algal bloom (HAB) in the Daechung reservoir, Korea. HAB samples located at GPS coordinates of 36°29'N latitude and 127°28'E longitude were harvested in October 2013. Microscopic observation of the HAB samples revealed red signals that were presumably caused by the autofluorescence of chlorophyll and phycocyanin in viable cyanobacteria. Metaproteomic analysis was performed by a gelbased shotgun proteomic method. Protein identification was conducted through a two-step analysis including a forward search strategy (FSS) (random search with the National Center for Biotechnology Information (NCBI), Cyanobase, and Phytozome), and a subsequent reverse search strategy (RSS) (additional Cyanobase search with a decoy database). The total number of proteins identified by the two-step analysis (FSS and RSS) was 1.8-fold higher than that by one-step analysis (FSS only). A total of 194 proteins were assigned to 12 cyanobacterial species (99 mol%) and one green algae species (1 mol%). Among the species identified, the toxic microcystin-producing Microcystis aeruginosa NIES-843 (62.3%) species was the most dominant. The largest functional category was proteins belonging to the energy category (39%), followed by metabolism (15%), and translation (12%). This study will be a good reference for monitoring ecological variations at the meta-protein level of aquatic microalgae for understanding HAB.

수중운동 프로그램의 효과에 대한 논문분석 (Analysis of Studies on the Effect of Aquatic Exercise Program)

  • 김종임;조경숙;심희숙;이은남;이인옥;은영;이동숙;강현숙;박원숙;이지현
    • 근관절건강학회지
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    • 제18권2호
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    • pp.257-269
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    • 2011
  • Purpose: The purpose of this study was to analyze the effect of aquatic exercise and to identify directions for future research. Methods: Twenty one articles from 2 sites of article database (1990-2010) and 6 from Korean nursing journals were reviewed. Results: There were 20 quasi experimental design and 1 randomized controlled design. Major subjects of research were older women with arthritis. The most common type of exercise was Kim (1994)'s form. The most frequent duration of exercise was over 6 weeks. Outcome measurement was classified to physical and psychosocial variables. For physical outcomes, pain release was found in 13 articles among 15 articles, muscle strength improvement in 5 articles among 10 articles, flexibility improvement in 5 articles among 9 articles, and balance improvement in 3 articles among 6 articles. For psychosocial outcomes, improvement of quality of life was found in 3 articles among 7 articles and self-efficacy improvement in 5 articles among 7 articles. Conclusion : The effect of aquatic exercise over 6 weeks improves the physical and psychosocial functions. It is suggested that meta analysis needs to be done to integrate the various results.