高等学校专用基金收支与管理初探     

李绍燕 《宁德师专学报(自然科学版)》2001,13(1):47-49

阐述了高校专用基金的财务管理特点及其加强学校专用基金管理的重要性 .结合长期财务管理工作实践 ,初步探讨了高校各项专用基金收支及管理 ,并对实际操作中存在的具体问题提出处理办法  相似文献   

绘画艺术抽象的模糊性与模糊美     

邹正昌  伍蔚兰 《湖南城市学院学报》2001,22(1):34-37

抽象与具象在艺术形象中二者统一于美。中国传统艺术抽象由个性向模式化的共性过渡，走向类型化的共性终结。西方现代艺术抽象追求个性与理性。从艺术创造和欣赏剖析，抽象引发模糊性，作品的模糊性蕴藏着无尽的模糊美。  相似文献   

大菜粉蝶颗粒体病毒(pbGV)包涵体蛋白mRNA的提取及电镜观察     

游哲  李维琪 《中国科学院研究生院学报》1992,(2)

包涵体蛋白 mRNA 是大菜粉蝶颗粒体病毒(pbGV)感染晚期合成的主要信使 RNA.我们从染病晚期幼虫脂肪体中,用饱和苯酚法提取总核酸,用 LiCl 去除其中 DNA,经 Oligo-(dT)纤维素层析柱,mRNA 呈现二个洗脱峰,将洗脱峰组份用尿素-高甲酰胺法制样电镜观察.电镜下 mRNA 分子柔软、粗糙,呈弯曲的线状,分子长度约0.3μ(30个统计)  相似文献   

基于预警机制的实验设备管理系统开发     

曹明  闪四清 《实验室研究与探索》2011,(6):388-391

通过对高校实验设备管理的现状进行分析和研究,总结了当前高校实验设备管理系统存在的问题,设计和开发了基于预警机制的实验设备管理系统。重点研究了预警机制在实验设备管理系统中的预警流程,预警机制在系统MVC架构中的应用,基于PDO的数据库技术以及权限管理等技术,解决了实验设备管理系统智能预警、信息网上共享、设备管理员相互沟通协调、生成统计报表等问题。  相似文献   

抽象空间中随机过程收敛性的研究   总被引：2，自引：0，他引：2  

苏连塔 《泉州师范学院学报》2006,24(6):9-12

研究随机过程之和的收敛性问题,给出了{∑k=1∞εk(ω)Xk(t)}k∞=1依联合测度μ×P收敛的一个充分条件,并同时给出一个∑明.这些问题的解决对弄清楚随机过程的收敛状况,进而揭示随机现象运动变化趋势有积极的理论意义.  相似文献   

个性化远程学习的形式化建模方法研究     

周如旗 《广东教育学院学报》2005,25(5):99-102

在分析远程教育个性化服务系统行为特性以及用户学习活动中涉及的行为属性基础上,对普通Petri网进行基于属性抽取与整合操作的扩展,针对个性化远程教育系统建立基于扩展Petri网的形式化模型.从模型特性分析结果,它符合个性化学习活动特性和要求,能有效体现系统个性化功能特性.  相似文献   

High-School Students' Attitudes Regarding Procedural Abstraction   总被引：1，自引：0，他引：1  

Bruria Haberman 《Education and Information Technologies》2004,9(2):131-145

During the last decade a new computer science curriculum has been taught in Israeli high schools. This curriculum introduces CS concepts and problem-solving methods independently of specific computers and programming languages, along with the practical implementation of those concepts and methods encountered in actual programming languages. The advanced study unit of the curriculum, Software Design, introduces the students to various aspects of software systems design through the use of abstract data types (ADTs). One main goal of the unit is to develop abstract thinking skills and problem-solving abilities. More specifically, the unit presents principles such as procedural abstraction, data abstraction, information hiding, modularity, efficiency, and reuse of code.We present the results of a preliminary study whose aim was to assess students' attitudes regarding procedural abstraction. The research population consisted of high-school students who attended the Software Design course (beginners), and a control group of undergraduate CS students (advanced). The results of the study clearly indicated a significant difference between the attitudes of the two groups. We found that the advanced students preferred algorithms that were formulated to some extent with high-level abstraction; however, they encountered a cognitive barrier when dealing with algorithms that they had evaluated as too abstract for them. However, beginners felt more comfortable with algorithms with low-level abstraction. Nevertheless they showed open-mindedness toward some degree of procedural abstraction. The results of the study were used to design scaffolding problem-solving tools for algorithm development, utilizing procedural abstraction techniques that can be adapted to various student populations (Haberman, B. (2002) SIGCSE Bulletin, 34(4), 60–64).  相似文献   

浅谈室内空间的形式趣味     

胡哲辉 《岳阳职业技术学院学报》2004,19(3):86-88

室内空间对人的感受至关重要，需要综合生理、心理、物质、精神等许多方面的因素，才能使人和环境达到一种和谐的境界。艺术与人性息息相通，趣味是人在生活中灵感的闪现。以人为中心，根据人的心理特征具体分析，探索室内设计中的形式规律，寻求形式快感产生的逻辑性，将形式的趣味美归纳为抽象的趣味美和情感的趣味美。  相似文献   

For a learnable mathematics in the digital cultures     

Richard Noss 《Educational Studies in Mathematics》2001,48(1):21-46

I begin with some general remarks concerning the co-evolution of representational forms and mathematical meanings. I then discuss the changed roles of mathematics and novel representations that emerge from the ubiquity of computational models, and briefly consider the implications for learning mathematics. I contend that a central component of knowledge required in modern societies involves the development of a meta-epistemological stance – i.e. developing a sense of mechanism for the models that underpin social and professional discourses. I illustrate this point in relation to recent research in which I am investigating the mathematical epistemology of engineering practice. Finally, I map out one implication for the design of future mathematical learning environments with reference to some data from the `Playground Project. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

浅析机械基础教学中抽象与具体的转化     

蔡庭栋 《天津职业院校联合学报》2004,6(6):75-76

抽象和具体是对立的,教学中将概念与实际结合起来,使抽象变具体,通过实例理解概念,可收到良好的教学效果。  相似文献