信息系统开发中的质量管理

本文通过对我国信息系统开发现状进行了分析，提出了在信息系统开发中质量管理的原则和方法，并针对信息系统的基础──数据库．提出了几种面向数据的数据库质量控制方法，为使用这些方法能够简便、快速而有效地提高信息系统数据库建库的质量。     

信息检索可视化初探

本文讨论了信息检索可视化的系统环境、体系结构和人机接口的设计方法。由于信息资源的类型(图、文、声)不同，其检索方法各具特色；其系统内由并列的模块支撑，而外部用统一的界面提供。     

基于工作流的产品制造流程系统体系研究

工作流管理系统为制造企业的产品制造流程系统应用提供理论基础和技术支撑。本文提出了面向制造企业的，产品制造流程模型和基于工作流技术的产品制造流程系统体系，通过该系统体系可以实现产品制造流程的自动化执行。     

敏于思考勇于创新——由Fe(OH)2的制备实验培养创新思维

本文从Fe(OH)2的制备实验角度入手,论述了如何培养学生的创新思维.     

Librarians collaborate successfully with nursing faculty and a writing centre to support nursing students doing professional doctorates

This study explores how a three‐way collaboration between a University library, writing centre and faculty created avenues of training and support for students within a Doctor of Nursing Practice (DNP) program in an American University. The role of each partner involved in the collaboration is discussed alongside the profile of the DNP students. Lesson planning and classroom techniques for DNP information literacy classes are described and feedback from the partners and the students are discussed. The study confirms that collaboration is effective in improving research and writing skills. D.I.     

《人民日报》英文版(People’s Daily)对中美贸易摩擦报道研究--基于语料库的批评性话语分析

2018年3月22日,美国总统特朗普正式签署美国政府对华贸易备忘录,这标志着“中美贸易战摩擦”的序幕正式拉开。本文以《人民日报》英文版(People’s Daily)为研究对象,用抽样选取的方式将该报纸上从2018年3月22日(星期四)到2019年3月28日(星期四)有关中美贸易摩擦的相关报道全部摘录下来,根据每篇报道的话语特点将其分成三个阶段,以内容分析和基于语料库的批判性话语分析为研究方法,分析得出中美贸易摩擦不同阶段的话语特点,进而得出相应的研究结论,同时提出一些富有实操价值的改进建议,为我国主流报纸更好地向世界传播中国思想、讲好中国故事献计献策。     

积极应对SA8000认证提高我国企业国际市场竞争力

SA8000认证制度,是经济全球化的本性和发展需要,是企业通向国际市场的通行证.目前,我国企业在实施SA8000认证制度的过程中还存在许多问题和困难,企业要更新观念,采取积极的应对措施,参与SA8000认证,努力提高我国企业在国际市场上的竞争力.     

Genetic analysis for brix weight per stool and its component traits in sugarcane （Saccharum officinarum）

Brix weight per stool (BW) of sugarcane is a complex trait, which is the final product of a combination of many components. Diallel cross experiments were conducted during a period of two years for BW and its five component traits, including stalk diameter (SD), stalk length (SL), stalk number (SN), stalk weight (SW), and brix scale (BS) of sugarcane. Phenotypic data of all the six traits were analyzed by mixed linear model and their phenotype variances were portioned into additive (A),dominance (D), additive×environment interaction (AE) and dominance×environment interaction (DE) effects, and the correlations of A, D, AE and DE effects between BW and its components were estimated. Conditional analysis was employed to investigate the contribution of the components traits to the variances of A, D, AE and DE effects of BW. It was observed that the heritabilities of BW were significantly attributed to A, D and DE by 23.9%, 30.9% and 28.5%, respectively. The variance of A effect for BW was significantly affected by SL, SN and BS by 25.3%, 93.7% and 17.4%, respectively. The variances of D and DE effects for BW were also significantly influenced by all the five components by 5.1%～85.5%. These determinants might be helpful in sugarcane breeding and provide valuable information for multiple-trait improvement of BW.     

Effect of a distal protection device on epicardial blood flow and myocardial perfusion in primary percutaneous coronary intervention

Objective: The beneficial effect of percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (AMI) has been well established, but there is the problem of no-reflow phenomenon which is an adverse prognostic factor in primary PCI. In the present study the effect of a distal protection device (PercuSurge GuardWire; GW) on epicardial blood flow and myocardial perfusion was evaluated. Methods and Results: Patients with AMI were randomly divided into 2 groups, the GW and the control groups. The GW group included 52 patients with AMI who underwent primary PCI with GW protection and the control group included 60 patients who underwent primary PCI without GW protection. Epicardial blood flow in the infarct-related artery (IRA) and myocardial perfusion were evaluated according to the thrombolysis in myocardial infarction (TIMI) flow grade and the myocardial blush grade (MBG). We found TIMI score of 3 was obtained significantly more frequently in the GW group (96%) than in the control group (80%). The MBG score of 3 was obtained also significantly greater in the GW group (65%) than in the control group (33%). Conclusion: Primary PCI with GW protection can significantly improve epicardial blood flow and myocardial perfusion.