异方差半参数回归模型小波估计的渐近正态性

讨论了异方差半参数回归模型,建立了模型中参数β和非参数g（.）的小波估计,在适当的条件下,证明了β和g（.）的小波估计的渐近正态性.     

浅谈理实一体化课程设计开发——以克拉玛依职业技术学院电气自动化专业为例

基于工作过程开发高职课程是目前高职院校的改革热点,理论实践一体化教学的新课程实施是保障,合理的课程设计、组织是课程改革的关键。本文结合克拉玛依职业技术学院电气自动化专业理实一体化课程设计实施,进行总结,提出了自己的建议,以供参考。     

浅谈篮球比赛中运用犯规战术应注意的问题

世界各大篮球联赛和世界性大型篮球比赛中,经常有效地使用犯规战术。而有效的犯规战术对比赛有相当大的帮助,甚至能扭转比赛的局势和结果。本文旨在解析比赛过程中使用犯规战术应当注意的问题,为各篮球队在比赛过程中很好利用犯规战术以及在平时的练习中体会运用犯规战术提供一些经验,也为中国篮球运动水平的提升提供一些理论依据。     

浅谈语文课的导入艺术

良好的开端是成功的一半,语文教学亦是如此。本文根据以往教学实践对语文课堂的导入类型进行了总结,主要有开门见山,触及重点;温故知新,融会贯通;创设情境,引发共鸣;巧设悬念,精力集中;趣味导入,寓教于乐五种类型。     

Adopting evidence-based practice in clinical decision making: nurses' perceptions, knowledge, and barriers

Objective:

Evidence-based practice (EBP) provides nurses with a method to use critically appraised and scientifically proven evidence for delivering quality health care to a specific population. The objective of this study was to explore nurses'' awareness of, knowledge of, and attitude toward EBP and factors likely to encourage or create barriers to adoption. In addition, information sources used by nurses and their literature searching skills were also investigated.

Method:

A total of 2,100 copies of the questionnaire were distributed to registered nurses in 2 public hospitals in Singapore, and 1,486 completed forms were returned, resulting in a response rate of 70.8%.

Results:

More than 64% of the nurses expressed a positive attitude toward EBP. However, they pointed out that due to heavy workload, they cannot keep up to date with new evidence. Regarding self-efficacy of EBP-related abilities, the nurses perceived themselves to possess moderate levels of skills. The nurses also felt that EBP training, time availability, and mentoring by nurses with EBP experience would encourage them to implement EBP. The top three barriers to adopting EBP were lack of time, inability to understand statistical terms, and inadequate understanding of the jargon used in research articles. For literature searching, nurses were using basic search features and less than one-quarter of them were familiar with Boolean and proximity operators.

Conclusion:

Although nurses showed a positive attitude toward EBP, certain barriers were hindering their smooth adoption. It is, therefore, desirable that hospital management in Southeast Asia, particularly in Singapore, develop a comprehensive strategy for building EBP competencies through proper training. Moreover, hospital libraries should also play an active role in developing adequate information literacy skills among the nurses.

Highlights

• Nurses in Singapore, as in other countries, support the idea of evidence-based practice (EBP) but have limited skills in the area of literature searching and understanding evidence, which limits their use of evidence-based practice.
• Only a small number of nurses were able to pick an appropriate search strategy for a given topic, indicating a lack of basic literature searching skills.
• Sufficient literature searching knowledge is essential to retrieve current, relevant, and accurate evidence. However, a majority of nurses do not know how to properly use Boolean and proximity operators, indexing, truncation, or limits.

Implications

• Librarians need to be part of providing ongoing training for clinical nurses in searching the evidence, especially in hospitals promoting EBP or seeking Magnet status.
• Training is needed for clinical nurses to be able to achieve the use of EBP, and librarians can support this goal by teaching the search strategies portion of an EBP skills course.
• This study''s instrument could be used by librarians as a needs assessment tool to measure their own clinical nurses'' information literacy skills, if justification is needed locally.

     

基于文献聚类的211高校图书馆科研产出态势分析

本文选择了112所"211工程"高校图书馆作为样本,统计了它们在2000-2010年发表论文的数量、被引频次、下载频次、CSSCI论文数量、核心作者数、h指数等文献计量学指标;并在此基础上对112所高校图书馆进行聚类,通过分析比较各类别的计量学指标特征,以期对我国著名高校图书馆的科研产出发展态势提供客观的分析。     

国际合资企业组织学习影响因素及其绩效研究

从国际合资企业组织学习影响因素以及组织学习的绩效出发,对现有相关研究进行了回顾和梳理。指出了在国际合资企业的组织学习研究视角、管理控制与组织学习的关系以及组织学习绩效等问题上还需要进一步的探讨。     

Model reduction using the stability-equation method and the Padé approximation method

A combined method making use of the advantages of the stability-equation method and the Padé approximation method for reducing high order transfer functions of single-input/single-output systems and multivariable systems is presented. The reduction procedure is simple and computer-oriented. All the reduced models are guaranteed to be stable if the original system is stable. The proposed method is applied to the investigation of (1) the effect of model reduction on the limit-cycle of non-linear systems and (2) the effect of model reduction on Horowitz compensators. Detailed calculations are given and comparisons with results in the current literature are made.     

建构主义教学与学习评估方法的探讨

简要分析建构主义教学的特征,并从建构主义教学的角度,对目前英美等国许多大学普遍采用的大学生学习评估方法以及各种方法的利弊进行阐述和比较。同时,对提高中国高校学习评估的可靠性和有效性提出建议。