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101.
Gunn B.B. Kristensen Kristin Moberg Aakre Ann Helen Kristoffersen Sverre Sandberg 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2014,24(1):114-122
In laboratory medicine, several studies have described the most frequent errors in the different phases of the total testing process, and a large proportion of these errors occur in the pre-analytical phase. Schemes for registration of errors and subsequent feedback to the participants have been conducted for decades concerning the analytical phase by External Quality Assessment (EQA) organizations operating in most countries. The aim of the paper is to present an overview of different types of EQA schemes for the pre-analytical phase, and give examples of some existing schemes. So far, very few EQA organizations have focused on the pre-analytical phase, and most EQA organizations do not offer pre-analytical EQA schemes (EQAS). It is more difficult to perform and standardize pre-analytical EQAS and also, accreditation bodies do not ask the laboratories for results from such schemes. However, some ongoing EQA programs for the pre-analytical phase do exist, and some examples are given in this paper. The methods used can be divided into three different types; collecting information about pre-analytical laboratory procedures, circulating real samples to collect information about interferences that might affect the measurement procedure, or register actual laboratory errors and relate these to quality indicators. These three types have different focus and different challenges regarding implementation, and a combination of the three is probably necessary to be able to detect and monitor the wide range of errors occurring in the pre-analytical phase. 相似文献
103.
Ann Bennington 《中学生博览》2011,(7):65-68
你是爱,是暖,是希望,你是人间四月天
那些隐匿在黑暗中的云朵瞬间把太阳遮蔽,阳光从云朵里投射出来,映出云朵的轮廓,像一个模糊的幻境。云朵蘸满了墨水一样沉甸甸地粘在暗色的苍穹,欲来的雨云塞满了曾经湛蓝的天空。然后,雨水铺天盖地而来。 相似文献
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The New Labour government, in its Green Paper on the Learning Age, published in February 1998, put lifelong learning at the heart of its programme. In this article we aim to demonstrate that there is a direct parallel between the processes outlined in the Green Paper and the processes of experiential learning and community development by focusing on the Diploma in Community and Youth Work Studies run by the Community Work Unit (CWU) based in the Centre for the Development of Continuing Education at the University of Manchester.Community action provides a setting for informal education. Community workers are in a unique position in relation to developing the potential for learning in the groups and individuals with whom they work. Their education and training should enable them to articulate and value their experience and reflect upon it in order to establish a meaningful basis for further self- and/or community development. We will explore how the CWU uses participative learning methods which recognize, value and use the experience and understanding of the participants as a basis for their own and others’ learning, and the relevance of these learning methods to the work practice of the participants. 相似文献
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Brian L. Gerber Edmund A. Marek Ann M. L. Cavallo 《International Journal of Science Education》2013,35(6):569-583
Learning that takes place outside the formal classroom, called informal learning, has been a difficult parameter to assess due to the heterogeneous nature of the subjects and everyday learning situations. To date, no instrument has been developed to effectively examine the wide variety of informal experiences a child may encounter. Central to this study was the development and field testing of such an instrument, the Informal Learning Opportunities Assay (ILOA). The ILOA was administered to a total of 2128 middle and high school students and was found to be ethnically neutral, easily scored, and flexible in design to accommodate practitioners and researchers. The instrument was found to provide a reliable assessment of informal learning opportunities. 相似文献
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