Interferences from blood collection tube components on clinical chemistry assays

Improper design or use of blood collection devices can adversely affect the accuracy of laboratory test results. Vascular access devices, such as catheters and needles, exert shear forces during blood flow, which creates a predisposition to cell lysis. Components from blood collection tubes, such as stoppers, lubricants, surfactants, and separator gels, can leach into specimens and/or adsorb analytes from a specimen; special tube additives may also alter analyte stability. Because of these interactions with blood specimens, blood collection devices are a potential source of pre-analytical error in laboratory testing. Accurate laboratory testing requires an understanding of the complex interactions between collection devices and blood specimens. Manufacturers, vendors, and clinical laboratorians must consider the pre-analytical challenges in laboratory testing. Although other authors have described the effects of endogenous substances on clinical assay results, the effects/impact of blood collection tube additives and components have not been well systematically described or explained. This review aims to identify and describe blood collection tube additives and their components and the strategies used to minimize their effects on clinical chemistry assays.     

中国大学生英语书面语中认识立场表达特征

认识立场表达受认知、文化等因素的影响。由于认知、文化的差异以及英语知识的不足,中国学生在议论文写作中高频使用直接、显性的立场表达手段表达作者的认识与看法,而较少使用间接、隐性的表达手段,这构成了中国学习者英语书面语中认识立场表达的重要特征。     

On the Politics of Calculative Devices

This article examines the politics of calculative devices in one of the most successful areas of finance, the life insurance business. By empirically tracing an insurance applicant's risk trajectory, it analyses how calculative devices perform insurance underwriting through acting on insurance risk decisions. This allows one to document what calculative devices exactly do, and to point out the political effects of what they do. First, it highlights the fact that, contrary to thinking in terms of ‘the insurance logic’, there are multiple ways of calcuting life insurance risks. Second, it underscores the crucial role of calculative devices in that process by demonstrating how they align considerations as divergent as economics and medicine to perform a life insurance market. It then demonstrates the political effects of these calculative devices by making explicit how the latter contribute to the production of inequalities in calculative power in life insurance. In this way, the article links up insights from the performativity approach in the sociology of markets with the broader question of governing economic life. Such an approach, it is argued, provides the opportunity to open up the organization of economic markets and to put classic questions of justice and power struggles in economic markets on the agenda again.     

浅析MD-EW架构课堂的理论及应用价值

电子白板和移动设备的使用时常发生交汇,引发了人们对新型教学应用技巧的思考。以电子白板为教学服务核心,使用移动设备作为学生端交互工具的新型课堂架构（MD-EW架构）应运而生。MD-EW架构的课堂实现了从传统课堂到微型移动课堂的扩展,体现了泛在学习和移动学习的理念,是电子白板与智能移动设备联合应用的一次有益尝试。     

浅析《论荒唐》的语言艺术

《论荒唐》(ONBEING CRAZY)一文大量运用换义、修辞性疑问、含蓄渲染、暗喻和对比等英语语言修辞手法，此外，谴词造句也恰到好处。     

从西方修辞学的视角看翻译活动

翻译作为一种跨文化的交流活动,涉及到翻译动机、翻译观念、文本分析、翻译策略等问题。而西方修辞学主要研究言语的运用,包括研究文本的修辞目的、修辞情境、修辞方式、修辞效果等方面。本文试图从西方修辞学的视角对翻译活动进行分析、研究,表明翻译是一种以修辞为中介的活动。     

Optical computing

Researchers are using new conducting polymers to make transistor-like switches that are smaller and thousand times faster than the silicon transistors. Electricity-conducting organic molecules that are much thinner than semiconductor wires, are being teased into self-assembling. These advances promise super-tiny all-optical chips. In fact, progress in optical storage devices can now shrink an entire Library’s book collection down to sugar-cube size. Optical computers could be leaving silicon number crunchers choking in the dust by decade’s end.     

标点符号修辞功能初探

标点符号在书面语交际活动中除了一般的语法意义外,还具有一种独特的修辞功能。以名家名篇为例,从描摹语音,传达情意,刻画人物,创设情境等四个方面对标点符号的修辞作用进行了分析、归纳、总结。     

《潜夫论》词语考释五则

本文利用修辞特征考辨了《潜夫论》5条词语，对汪继培笺和彭铎校正提出己见，从而解决对文、排比句中异词同义和双音词内部关系的问题以及脱文、衍文、误字等问题。     

词义修辞格在广告英语中的运用

广告语言是一种劝说性、鼓动性的语言，广告撰写者经常运用修辞格来加大广告的劝说力度。文章探析了一部分词义修辞格在广告英语中的运用。