• 제목/요약/키워드: Mc. Master

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뇌졸중환자 평가를 위한 Chedoke-McMaster Stroke Assessment의 측정자간 신뢰도 (Inter-Rater Reliability of Chedoke-McMaster Stroke Assessment for Stroke Patients)

  • 원종혁;김용욱
    • 한국전문물리치료학회지
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    • 제4권3호
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    • pp.45-60
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    • 1997
  • This study was performed to determine the inter-rater reliability of the Chedoke-McMaster Stroke Assessment translated in Korean. This measures the physical impairments and disabilities that impact on the lives of individuals with stroke. The purposes of this measure were 1) to stage motor recovery to classify individuals in terms of clinical characteristics, 2) to predict rehabilitation outcomes, and 3) to measure clinically important change in physical function. Twenty-two subjects from physical therapy unit were assessed by two physical therapists. The ratings were compared by Spearman's rank correlation The correlation between two raters ranged from 0.85 to 0.98. Inter-rater reliability coefficient for total scores ranged from 0.95 to 0.97. This study confirms that the Chedoke-McMaster Stroke Assessment yields reliable results.

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Sorption of Pd on illite, MX-80 bentonite and shale in Na-Ca-Cl solutions

  • Goguen, Jared;Walker, Andrew;Racette, Joshua;Riddoch, Justin;Nagasaki, Shinya
    • Nuclear Engineering and Technology
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    • 제53권3호
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    • pp.894-900
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    • 2021
  • This paper examines sorption of Pd(II) onto illite, MX-80 bentonite, and Queenston shale in Na-Ca-Cl solutions of varying ionic strength (IS) from 0.01 to 6.0 mol/L (M) and pHc ranging from 3 to 9 under atmospheric conditions. A 2-site protolysis non-electrostatic surface complexation and cation exchange model was applied to the Pd sorption onto illite and MX-80 using PHREEQC, and the model results were compared to the experimental ones obtained in this work. Surface complexation and cation exchange constants were estimated for both illite and MX-80 through the optimization process to bring the predicted distribution coefficients from the model into alignment with the experimentally derived values. These optimized surface complexation constants were compared to existing linear free energy relationships (LFER).

The quality of subgroup analyses in chronic pain randomized controlled trials: a methodological review

  • AminiLari, Mahmood;Ashoorian, Vahid;Caldwell, Alexa;Rahman, Yasir;Nieuwlaat, Robby;Busse, Jason W.;Mbuagbaw, Lawrence
    • The Korean Journal of Pain
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    • 제34권2호
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    • pp.139-155
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    • 2021
  • The quality of subgroup analyses (SGAs) in chronic non-cancer pain trials is uncertain. The purpose of this study was to address this issue. We conducted a comprehensive search in MEDLINE and EMBASE from January 2012 to September 2018 to identify eligible trials. Two pairs of reviewers assessed the quality of the SGAs and the credibility of subgroup claims using the 10 criteria developed by Sun et al. in 2012. The associations between the quality of the SGAs and the studies' characteristics including risk of bias, funding sources, sample size, and the latest impact factor, were assessed using multivariable logistic regression. Our search retrieved 3,401 articles of which 66 were eligible. The total number of SGAs was 177 of which 52 (29.4%) made a subgroup claim. Of these, only 15 (8.5%) were evaluated as being of high quality. Among the 30 SGAs that claimed subgroup effects using an appropriate method of performing interaction tests, the credibility of only 5 were assessed as high. None of the subgroup claims met all the credibility criteria. No significant association was found between the quality of SGAs and the studies' characteristics. The quality of the SGAs performed in chronic pain trials was poor. To enhance the quality of SGAs, scholars should consider the developed criteria when designing and conducting trials, particularly those which need to be specified a priori.

UNCERTAINTY PROPAGATION ANALYSIS FOR YONGGWANG NUCLEAR UNIT 4 BY MCCARD/MASTER CORE ANALYSIS SYSTEM

  • Park, Ho Jin;Lee, Dong Hyuk;Shim, Hyung Jin;Kim, Chang Hyo
    • Nuclear Engineering and Technology
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    • 제46권3호
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    • pp.291-298
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    • 2014
  • This paper concerns estimating uncertainties of the core neutronics design parameters of power reactors by direct sampling method (DSM) calculations based on the two-step McCARD/MASTER design system in which McCARD is used to generate the fuel assembly (FA) homogenized few group constants (FGCs) while MASTER is used to conduct the core neutronics design computation. It presents an extended application of the uncertainty propagation analysis method originally designed for uncertainty quantification of the FA FGCs as a way to produce the covariances between the FGCs of any pair of FAs comprising the core, or the covariance matrix of the FA FGCs required for random sampling of the FA FGCs input sets into direct sampling core calculations by MASTER. For illustrative purposes, the uncertainties of core design parameters such as the effective multiplication factor ($k_{eff}$), normalized FA power densities, power peaking factors, etc. for the beginning of life (BOL) core of Yonggwang nuclear unit 4 (YGN4) at the hot zero power and all rods out are estimated by the McCARD/MASTER-based DSM computations. The results are compared with those from the uncertainty propagation analysis method based on the McCARD-predicted sensitivity coefficients of nuclear design parameters and the cross section covariance data.

디모자익킹 기술 개발을 위한 신규 맥매스터 영상 데이터에 대한 해석 (Analysis on the new McMaster image dataset to develop demosaicking techniques)

  • 유훈
    • 한국정보통신학회논문지
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    • 제16권2호
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    • pp.344-349
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    • 2012
  • 본 논문에서는 디모자익킹 기술 개발에서 신규 맥매스터 영상 데이터에 대한 실험을 진행하고 그에 따른 해석 결과를 제공한다. 디모자익킹 기술 개발을 위해서 사용되는 실험 영상으로 현재까지 가장 알려져 있는 데이터는 코닥 영상이다. 하지만 최근 신규 영상 데이터가 개발됨으로써 이전과는 다른 디모자익킹 실험 결과를 보여주고 있다. 따라서, 본 논문에서는 코닥 영상과 맥매스터 영상에 대한 통계적 특성을 실험, 분석 하고 비교함으로써 신규 실험 영상이 어떤 특징을 갖는지에 대해서 해석한다. 또한 실험 결과와 해석은 맥매스터 영상이 디모자익킹 기술 개발에 실험 영상으로써 가치가 있음을 보여주며, 향후 개발될 디모자익킹 기술에 대한 기초 자료로 활용될 것으로 기대된다.

COLD NEUTRON SCATTERING STUDIES OF FRUSTRATED PYROCHLORE ANTIFERROMAGNETS

  • GARDNER, J.S.;RULE, K.C.;RUFF, J.P.C.;CLANCY, J.P.;GAULIN, B.D.
    • Nuclear Engineering and Technology
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    • 제43권1호
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    • pp.7-12
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    • 2011
  • In this paper we review the neutron scattering work performed on 3 different antiferromagnetic pyrochlores which reveal how the character of the magnetic interactions plays a major role on the eventual outcome of the magnetic ground state. $Tb_2Ti_2O_7$, $Er_2Ti_2O_7$ and $Y_2Mo_2O_7$ have all been extensively studied over the past 15 years and are known to display, respectively, spin liquid, long range ordered and glassy ground states. Although detailed experiments have been performed on these compounds, and much is known about their low temperature properties, a detailed theoretical understanding of their ground states remains elusive.