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同行评议是科学基金项目评审的重要环节。高质量的同行评议是实现基金精准资助的前提和保障。本文以国家自然科学基金通讯评审为例,针对同行评议中出现的评审偏差,探讨了基金评审的模糊属性,提出了通过构建评审结果的模糊集合及一致性函数来解决该问题的可能性,为进一步优化评审结果、实现基金精准资助指出了新方向。 相似文献
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完善评审机制是国家自然科学基金委新时代基金改革的重要任务之一。为切实落实该项改革任务,建立符合新时代科学基金资助导向的科学、公正、高效的评审机制,基金委化学部努力探索新的学科基金管理模式,尝试了在通信评审阶段由科学家与学科管理人员共同参与项目的分组、指派,共同完成同行评议专家遴选工作的新模式。本文分析了科学家参与同行评议专家遴选工作的利弊,探讨了如何更好的发挥科学家在同行评议专家遴选工作中的作用,建立学术共同体互信的基金评审机制。 相似文献
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1999年国家自然科学基金委员会化学科学部共受理64份国家杰出青年科学基金申请书及20份海外、香港青年学者合作研究基金申请书。在同行评议的基础上,择优推荐了24名国家杰出青年科学基金申请者和6名海外、香港青年学者合作研究基金的国内合作者到会介绍申请人的工作成就和研究工作的设想,并回答了评委提问。经化学科学部杰出青年科学基金专业评审组评审和投票,遴选出建议资助人选。经国家杰出青年科学基金评审委员会评审和批准,化学科学部共有17人获得国家杰出青年科学基金资助,6人获得海外、香港青年学者合作研究基金资… 相似文献
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20 0 0年国家自然科学基金委员会化学科学部共受理80份国家杰出青年科学基金申请书及 30份海外、香港青年合作研究基金申请书 (与 1999年相比 ,前者申请多 2 0份 ,后者申请多 10份 )。在同行评议的基础上 ,择优推荐了 30名国家杰出青年科学基金申请者和 11名海外、香港青年学者合作研究基金的申请者或国内合作者到会进行复审 ,在会上申请人报告了其研究方向及主要学术成绩、创新点及评价和拟开展的研究工作设想及科学意义 ,回答了评委的提问。经化学科学部杰出青年科学基金专业评审组评审和投票 ,遴选出建议资助候选人。最后 ,经国家杰出青… 相似文献
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国家自然科学基金委员会化学科学部2012年受理国家杰出青年科学基金申请313项,比2011年的344项减少31项,主要原因是2012年优秀青年科学基金的设立转移了部分年轻申请人。在通讯评议基础上,化学科学部择优推荐46名申请者到会答辩,其中女性学者5人。化学科学部杰出青年科学基金专业评审组专家就申请者的主要学术成绩、创新点、拟开展的研究工作及科学意义等方面进行了评议,投票遴选出31名资助候选人。2012年9月21日经国家杰出青年科学基金评审委员会评审,化学科学部推荐的31名候选人均获得资助,资助率为9.9%。 相似文献
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国家自然科学基金委员会化学科学部2013年受理国家杰出青年科学基金申请329项,比2012年的313项增加16项。在通讯评议基础上,化学科学部择优推荐47名申请者到会答辩,其中女性学者7人。化学科学部杰出青年科学基金专业评审组专家就申请者的主要学术成绩、创新点、拟开展的研究工作及科学意义等方面进行了评议,投票遴选出31名资助候选人。2013年9月17日经国家杰出青年科学基金评审委员会评审,化学科学部推荐的31名候选人均获得资助,资助率为9.4%。 相似文献
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本文总结了2009年度物理化学学科面上项目、青年科学基金项目和地区科学基金项目的申请、受理及评审情况. 通过与过去几年申请和资助项目进行比较, 分析了申请和资助项目研究内容变化发展趋势和人才队伍情况, 提出了在项目申报及评审过程中值得大家关注和借鉴的问题. 相似文献
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A proficiency testing programme might involve a great number of participating laboratories coming from different countries or regions, and normally they analysed the same test materials using their own routine analytical methods. Hence, the results of a proficiency testing programme may contain valuable information which could serve purposes other than just performance evaluation. This study attempted to extract information from the results of a proficiency testing programme for the purposes of educating the participating laboratories as suggested by ISO/IEC 17043. The “bias analysis” approach introduced in this study was based on the statistical model of measurement and the nature of bias in chemical analysis. With this approach, the participating laboratories could estimate the bias associated with different settings of experimental conditions according to the statistics of subset distribution of the reported results from the participating laboratories. This would be useful for them to review the analytical procedures they used and modify their methods if needed. The approach was applied to the analysis of data obtained from a number of past proficiency testing programmes, and the findings were discussed in this paper. 相似文献
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测量不确定度的研究和应用进展 总被引:10,自引:0,他引:10
综述了测量不确定度在国内外的研究及应用的进展,发现测量不确定度是现代误差理论的重要内容,是定量描述测量结果质量的重要指标。目前由ISO等七个国际组织提出的GUM(测量不确定度表述导则)已被各国广泛接受,国内外已有大量关于不确定度应用的文献。除GUM外,还存在其它几种不确定度评定模型。我国虽然对GUM存在重大疑义,并向有关国际组织提出了一些建设性的意见,但在方法的执行上目前仍然与国际社会保持了对GUM的一致态度。 相似文献
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It is generally accepted that an analytical procedure can be regarded as an information production system yielding information on the composition of the analyzed sample. Thus, information theory can be useful and the quantities characterizing the information properties of an analytical method may be applied not only as evaluation criteria but also as objective functions in the optimization. The usability of information theory is demonstrated on the example of neutron activation analysis. Both precision and bias of NAA results are taken into account together with the possible use of reference materials for quality assessment. The influence of the above-mentioned parameters on information properties such as information gain and profitability of NAA results is discussed in detail. It has been proved that information theory is especially useful in choosing suitable reference materials for the quality assessment of routine analytical procedures not only with respect to matrix and analyte concentration in the sample but also to concentrations and uncertainties of certified values in the CRM used. In the extreme trace analysis, CRMs with relatively large uncertainties and very low certified concentrations can still yield rather high information gain of results. 相似文献
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A. Maroto Ricard Boqué Jordi Riu F. Xavier Rius 《Accreditation and quality assurance》2002,7(3):90-94
The bias of an analytical procedure is calculated in the assessment of trueness. If this experimental bias is not significant,
we assume that the procedure is unbiased and, consequently, the results obtained with this procedure are not corrected for
this bias. However, when assessing trueness there is always a probability of incorrectly concluding that the experimental
bias is not significant. Therefore, non-significant experimental bias should be included as a component of uncertainty. In
this paper, we have studied if it is always necessary to include this term and which is the best approach to include this
bias in the uncertainty budget. To answer these questions, we have used the Monte-Carlo method to simulate the assessment
of trueness of biased procedures and the future results these procedures provide. The results show that non-significant experimental
bias should be included as a component of uncertainty when the uncertainty of this bias represents at least a 30% of the overall
uncertainty.
Received: 29 May 2001 Accepted: 10 December 2001 相似文献
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Ibrahim Unsal Abdurrahman Coskun Mustafa Serteser Tamer C. Inal Aysel Ozpinar 《Accreditation and quality assurance》2010,15(11):621-627
The main purpose of quality assurance procedures in clinical laboratories is to ensure that test results are appropriate to
maintain excellence in the diagnosis, monitoring, and treatment of disease. However, in current practice, no standardized
procedure or frequency for the evaluation of methods exists, particularly in external quality assessment. Furthermore, different
quality control materials are typically used for internal and external quality assessment. To overcome these discrepancies,
we used samples with the same matrix for both internal and external quality assessments of a group test performed in our laboratory.
We then calculated total error using real bias (target value obtained by reference method) and the imprecision of each test
and compared our results with the total error allowable, derived from biological variation data. We suggest that the strategy
of using the same matrix samples for both internal and external quality assessment is cost-effective, can be readily used
by staff, and will facilitate the standardization of quality control in clinical laboratories. 相似文献
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Data from various proficiency testing schemes, operated by LGC Standards, was collated and reviewed to determine whether regular involvement within third party, proficiency testing, either over a prolonged period of time or via multiple participation, had improved the performance of those laboratories taking part. Three statistical evaluations were applied to historical PT results, a review of improvements over time, demonstrated by the evaluation of satisfactory performance scores achieved, a review of the relative robust standard deviations obtained from multiple methods and a focused review of one analyst participating in proficiency testing over a prolonged period of time. In each case the data indicated that long term participation and evaluation via proficiency testing had resulted in consistent and sustained improvements in laboratory performance. 相似文献
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Zhongyu Wu Zhichao Lin Pamela Mackill Cong Wei John Noonan James Cherniack Deborah Gillis-Landrum 《Journal of Radioanalytical and Nuclear Chemistry》2009,282(3):971-977
Measurement capability and data comparability are essential for emergency response when analytical data from cooperative laboratories
are used for risk assessment and post incident decision making. In this study, the current capability of food emergency response
laboratories for the analysis of 210Po in water was evaluated using a proficiency test scheme in compliance with ISO-43 and ILAC G13 guidelines, which comprises
a test sample preparation and verification protocol and an insightful statistical data evaluation. The results of performance
evaluations on relative bias, value trueness, precision, false positive detection, minimum detection limit, and limit of quantification,
are presented. 相似文献
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P. Medina-Pastor M. Mezcua C. Rodríguez-Torreblanca A. R. Fernández-Alba 《Analytical and bioanalytical chemistry》2010,397(7):3061-3070
The obligation for accredited laboratories to participate in proficiency tests under ISO 17025, performing multiresidue methods
(MRMs) for pesticide residues, involves the reporting of a large number of individual z scores making the evaluation of the overall performance of the laboratories difficult. It entails, time and again, the need
for ways to summarise the laboratory’s overall assessment into a unique combined index. In addition, the need for ways to
continually evaluate the performance of the laboratory over the years is equally acknowledged. For these reasons, following
14 years of the European Union Reference Laboratory for Pesticide Residues in Fruits and Vegetables (EUPT-FV), useful formulas
have been designed to globally evaluate the assessment of the participating laboratories. The aim is to achieve a formula
which is easy to understand, which can be applied and which fits the purposes of long-term evaluation detecting positive and
negative trends. Moreover, consideration is needed for a fair compensation of bad results in MRM, taking into account the
large number of compounds that are covered. It is therefore important to be aware of the difficulties in getting satisfactory
values from a wide range of compounds. This work presents an evaluation of the main well-established combined z score formulas together with those new ones developed here which have been applied to the European proficiency test results
(EUPTs) over the years. Previous formulas such as the rescaled sum of z score (RSZ), the sum squared of z score (SSZ) and the relative laboratory performance (RLP) are compared with the newer ones: the sum of weighted z scores (SWZ) and the sum of squared z scores (SZ2). By means of formula comparisons, conclusions on the advantages, drawbacks and the most fit-for-purpose approach
are achieved. 相似文献
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F Magni S Pereira M Leoni G Grisenti M Galli Kienle 《Journal of mass spectrometry : JMS》2001,36(6):670-676
Therapy with cyclosporin A (CsA) for immunosuppression after organ transplantation requires monitoring of its levels in blood owing to the narrow therapeutic index of the drug and to the high inter-individual variability of the drug absorption and metabolism. We describe the preparation of CsA labelled with stable isotopes ((13)C and (2)H) with an isotopic enrichment of about 99% using labelled glucose and its use as internal standard for quantification of CsA blood levels by isotope dilution/electrospray ionization mass spectrometry. The method was found to be linear in the tested range (1-1000 ng) with and without the matrix. The accuracy of the bracketting calibration curves prepared using 100 ng ml(-1) labelled CsA was within +/-1.7% (bias). The results confirmed the usefulness of the procedure as a reference method for the external quality assessment of the field methods for the evaluation of CsA blood concentration, the imprecision (relative standard deviation) and accuracy (bias) being <2%. 相似文献