借助SPSS软件的成绩因子分析

文中利用SPSS软件对学生的成绩进行因子分析,提取了七个因子,计算各自得分和综合得分及其排名,用这种方法计算学生成绩能够更加全面、合理地评价学生.     

高校实施全面质量管理探析

在高等教育从精英教育向大众化教育转变的过程中出现了教育质量的下滑现象,借鉴企业全面质量管理的思想和方法,建构高校教育质量管理体系是解决教育质量下滑的有效途径.     

中国保险业全要素生产率变动的Malmquist指数分析

保险业全要素生产率变动的分析对研究我国保险业发展状况有着重要的意义,文章在介绍了malmquist指数分析的基础上,对我国保险市场上的21家代表性保险公司在2005～2009年的全要素生产率变动进行了malmquist指数分析,并得出了相应的结论.     

磁化水的浅析

经实验测定证明,磁化水与普通水相比,密度稍有减小,溶氧量提高22％左右。研究发现,磁化水所具有的这些特性使得它的用途不断扩大．预计在未来的工业、农业、医学、生物学、建筑业等领域可产生良好的用途。     

The Effect of Structural Parameters on The Compression Resilience of Uncut Woven Pile Fabrics

If an uncut woven pile fabric is to be subjected to compressive load in use its compression resilience performance becomes very crucial.In order to optimize the extent of recovery in fabric thickness when the applied force is removed,thirteen uncut woven pile fabric samples were woven and tested on KES-G5 Hand Type Compression Tester (small compress Hammer).The results show that the above parameters influence compression resilience property of the uncut woven pile fabrics,and the structural factors have a more pronounced effect as compared to effect of fibre and yarn type.     

联图C_m∨F_n的点可区别全染色

根据点可区别全染色的概念及其染色方法,利用组合度,通过构造具体染色的方法得到了联图Cm∨Fn的点可区别全染色方法以及点可区别全染色数.     

全站仪三维坐标测量在道路中、边桩及高程测量中的应用

推出一种利用新的全站仪任意设站原理一次性放样中桩三维位置的方法,综合了全站仪和水准仪的优势,提高了放样测量的精度和速度。     

Current status of percutaneous coronary intervention of chronic total occlusion

This paper describes the current status of percutaneous coronary intervention (PCI) for totally occluded coronary arteries. Chronic total occlusion is associated with 10%–20% of all PCI procedures. Results show that opening an occluded vessel, especially one supplying a considerable area of myocardium, may be beneficial for a patient’s angina relief and heart function. We describe the devices used currently in re-canalization such as new wires, microcatheters (including Tonus and Cosair) and intravascular ultrasound guidance. Different techniques to improve the success rate and reduce complications are discussed in detail.     

基于JAF软件的数字测图方法研究

介绍了一种新的数字测图方法———基于JAF软件测图法。这种方法在外业测量时可以摆脱控制点坐标的束缚,提高外业的工作效率。通过以往常用方法与基于JAF软件测图法的对比以及对这种新方法的工作原理、外业操作方法与步骤、内业数据处理的论述,全面地介绍了基于JAF软件测图法。     

Evaluation of preanalytical and postanalytical phases in clinical biochemistry laboratory according to IFCC laboratory errors and patient safety specifications

IntroductionThe aim of the study was to determine the current state of laboratory’s extra-analytical phase performance by calculating preanalytical and postanalytical phase quality indicators (QIs) and sigma values and to compare obtained data according to desired quality specifications and sigma values reported by The International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) Working Group – Laboratory errors and Patient Safety.Materials and methodsPreanalytical and postanalytical phase data were obtained through laboratory information system. Rejected samples in preanalytical phase were grouped according to reasons for rejection and frequencies were calculated both monthly and for 2019. Sigma values were calculated according to “short term sigma” table.ResultsThe number of rejected samples in laboratory was 643 out of 191,831 in 2019. Total preanalytical phase rejection frequency was 0.22%. According to the reasons for rejection, QIs and sigma values were: “Samples with excessive transportation time”: 0.0036 and 5.47; “Samples collected in wrong container” 0.02 and 5.11. In December, QIs and sigma values were: “Samples with excessive transportation time”: 0.01 and 5.34; “Samples collected in wrong container”: 0.03 and 4.98. The postanalytical QIs and sigma values were: “Reports delivered outside the specified time”: 0.34 and 4.21; “Turn around time of potassium”: 56 minute and 3.84, respectively. There were no errors in “Critical values of inpatients and outpatients notified after a consensually agreed time”.ConclusionsExtra-analytical phase was evaluated by comparing it with the latest quality specifications and sigma values which will contribute to improving the quality of laboratory medicine.