关于自然数的多重幂性质     

唐再良 《绵阳师范学院学报》1998,(Z2)

给出并证明了自然数a的多重幂的两个命题,举例说明了它的应用。  相似文献   

高阶线性微分方程特解的一种代数解法     

廖正琦 《涪陵师范学院学报》2004,20(5):51-52

提出了高阶常系数线性微分方程Pn(D)x=Pm(t)e^λs特解的一种代数解法。  相似文献   

基于运城学院工科学生专业实习的就业力研究     

刘艳芳 《中国大学生就业》2020,(3):40-45

二本院校大学生就业难的问题日益受到社会各界的关注。本研究通过调研运城学院工科类学生专业实习项目运作基本情况,探索分析运城学院工科学生的专业实习实际效果影响因素。研究表明,学生的家庭情况、对专业实习的认知、人际交往能力对实习效果影响显著,学生性别、政治面貌、解决问题能力、专业知识水平、以往社会实践情况对专业实习效果影响不显著。在此基础上详细介绍各影响显著因素与实际效果相关程度,构建相应的数学模型,并针对目前专业实习应该关注的因素及存在的问题提出相应的意见建议。  相似文献   

融合、互动:科际关系之和谐     

阳沐乎韧 《南宁师范高等专科学校学报》2003,20(1):65-67

本文拟将广西教育科学“九五”规划中师重点课题“中等师范学校教学内容整体优化研究”的研究成果提升为理论层面，对教学内容整体优化在方法途径上的内涵特征进行理性化阐析，并用“多元渗透，多向辐射，多维建构”对之加以概括。认为融合、互动，科际关系之和谐，是教学内容整体优化的总特征。  相似文献   

《喧哗与骚动》的结构艺术探析     

耿崇焕 《廊坊师范学院学报》2005,21(2):47-49

现代意识流小说《喧哗与骚动》是美国作家威廉·福克纳的惊世之作。在这部小说中,作者运用了精巧别致的对位式结构、混乱颠倒的时间序列以及变幻多重的叙事视角等新颖独特的结构艺术技巧,描绘了一幅美国南方贵族没落的历史画卷。本文就此三方面结构创作艺术来揭示其深刻的思想主题,展示作品与众不同的魅力。  相似文献   

毛泽东的身份意识与其文艺话语的实践危机          下载免费PDF全文

颜敏 《惠州学院学报》2005,25(1):26-30

毛泽东的多重文化身份意识, 使其文艺话语有着不同的言说方式, 形成了其文艺话语特征的复杂性。而特定历史时期自我身份的不断错位, 导致了其文艺话语的错置。最终, 政治家身份呈现的话语特征逐渐掩盖了其他特征, 由此产生了话语的实践危机, 导致了中国文学艺术史上的重重劫难。  相似文献   

Student Mobility in Multilevel Growth Modeling: A Multiple Membership Piecewise Growth Model     

Audrey J. Leroux 《Journal of Experimental Education》2019,87(3):430-448

This study proposes a new model, termed the multiple membership piecewise growth model (MM-PGM), to handle individual mobility across clusters frequently encountered in longitudinal studies, especially in educational research wherein some students could attend multiple schools during the course of the study. A real data set containing some students who switched elementary schools was used to demonstrate and explain the MM-PGM. Parameter and model fit differences were compared between the MM-PGM and two other techniques for handling student mobility: the first school-PGM, which only used school membership at the first measurement occasion, and the delete-PGM, which removed mobile students from the analysis. Results indicated that the three approaches of handling mobile students led to different conclusions about the impact of school-level predictors of growth parameters and the school-level variability in the growth rates. Furthermore, deleting mobile students altered the impact of student-level predictors compared to the other two approaches.  相似文献   

Supporting learning with interactive multimedia through active integration of representations     

Daniel?BodemerEmail author  Rolf?Ploetzner  Katrin?Bruchmüller  Sonja?H?cker 《Instructional Science》2005,33(1):73-95

When learners explore dynamic and interactive visualisations they are often not able to interact with them in a systematic and goal-oriented way. Frequently, even supporting learners in processes of discovery learning does not lead to better learning outcomes. This can be due to missing pre-requisite knowledge such as the coherent mental integration of the pictorial and symbolic sources of information. In order to support learners in this process, we encouraged them to interactively and externally relate different static sources of information to each other before exploring dynamic and interactive visualisations. We evaluated the benefit of this instructional support in two experimental studies concerning the domains of statistics and mechanics. It revealed that the active integration of static representations before processing dynamic visualisations resulted in better performance and can provide a basis for a more systematic and goal-oriented experimentation behaviour during simulation-based discovery learning.in final form: 16 November 2004  相似文献   

Modeling Partial Knowledge on Multiple‐Choice Items Using Elimination Testing     

Qian Wu  Tinne De Laet  Rianne Janssen 《Journal of Educational Measurement》2019,56(2):391-414

Single‐best answers to multiple‐choice items are commonly dichotomized into correct and incorrect responses, and modeled using either a dichotomous item response theory (IRT) model or a polytomous one if differences among all response options are to be retained. The current study presents an alternative IRT‐based modeling approach to multiple‐choice items administered with the procedure of elimination testing, which asks test‐takers to eliminate all the response options they consider to be incorrect. The partial credit model is derived for the obtained responses. By extracting more information pertaining to test‐takers’ partial knowledge on the items, the proposed approach has the advantage of providing more accurate estimation of the latent ability. In addition, it may shed some light on the possible answering processes of test‐takers on the items. As an illustration, the proposed approach is applied to a classroom examination of an undergraduate course in engineering science.  相似文献   

文化全球化与道德教育   总被引：5，自引：0，他引：5  

冯建军 《高等教育研究》2007,(5)

文化全球化不是同质化,又不是西方化。当前的文化全球化应是多元文化的共处,但这又不是文化的自我封闭和文化的民族主义,而是文化间的“和而不同”。全球化时代人们对待文化,尤其是对待具有价值指向的道德文化的态度,构成了文化全球化时代道德教育的核心。  相似文献