共生图形的类型及其在现代设计中的运用

共生图形在视觉上具有趣味性和巧妙性,可以取得以少胜多、以一当十的画面效果,因此共生图形在现代设计中备受青睐,很多创意设计作品都是通过共生图形的配合运用以达到完美的视觉效果。     

试论新增专业文献建设的困境及其对策

文献信息建设是高校教育特别是新增专业建设和发展的重要内容，也是其三大支撑性要素之一，而我国各个院校都面临着新增专业学科文献信息建设明显不足和失措的困境．这种普遍性状况源于新增专业学科文献信息建设中先天性、源头性、境遇性、制度性和主体性等一系列相互关联的因素．各院校图书馆应该坚持对策性原则，加强新增专业文献信息建设，以走出目前的困境并推进新增专业的学科发展．     

一类二元非乘积型Meyer-knig-Zeller概率算子的饱和定理

借助二元抛物线引理,探讨一类二元非乘积型Meyer-knig and Zeller概率算子的饱和性,得到了一个点态饱和定理.     

Social relations as predictors of achievement in math in Kenyan primary schools

In sub-Saharan Africa, where there is limited financial and human capital, it is important to examine how social relationships may serve to promote or undermine human capital formation. However, little is known about the contributions of social relations to human capital development, especially in terms of academic achievement in Africa. This study examined how variations in key aspects of social relations among teachers; between teachers and students; between principals, teachers, parents and students affect achievement in mathematics among sixth graders in 70 schools in six districts in Kenya. We modeled mathematics achievement as a function of measures of social perception and support while adjusting for school-, classroom- and student level background characteristics. We found that net of teacher subject knowledge and background characteristics, teachers who display commitment to teaching by always correcting homework and keeping students engaged during math lessons had their students performing better. Teacher absenteeism and lack of interest in teaching were negatively associated with performance in math. Lack of parental involvement in the classroom also had negative effects on grades. At the school level, the level of engagement of the principal, measured by supervision of teachers and good interpersonal interactions with parents had positive effects on math achievement. Schools where parents provided material and financial support had better grades, while student delinquency and absenteeism negatively affected grades.     

论阅读教学中“教”“学”主体的转变

在应试教育的大背景下，阅读教学已经异化为应试教学，沦落为应试教育的手段。阅读教学要做到优质高效，并对整个小学语文教学起到重要的拉动作用，必须实现由“教”到“学”的主体转变，即课堂教学要由从以教师“教”为中心转变到以学生“学”为中心。只有经历这样的转变，阅读教学才能实现质的跨越。     

发电企业防范知识型员工流失的管理策略

随着国内电力市场化改革的逐步深入,知识型员工作为掌握专业技术知识的人才,日益成为企业间争夺的对象.本文探讨了知识型员工的特点,并由此入手分析了知识型员工流失的原因,提出了一套变管理为服务的制度以及防范该类员工流失可能对企业造成损失的措施.     

笛卡尔积的几个公式

本文通过集合论的方法得出笛卡尔积的内域,闭包,导集的三个公式,并由此确定了笛卡尔积的集合类型.     

关于数字图书馆的馆藏与技术问题刍议

数字图书馆使信息得以更广泛的传播，数字图书馆及其功能、作用与当前信息发展传播、计算机网络化所带来的有关馆藏、馆员诸多方面的新变化，今后数字图书馆可能的发展动向．     

高校图书馆建设地方特色文献数据库的思考

论述了高校图书馆创建地方特色献数据库的意义、必要性、可行性及及创建方法。     

关于我国林业经济管理学科建设的思考

本文首先探讨了我国林业经济管理专业学科建设的意义,然后在分析我国同类学科的不足的基础上,提出了我国林业经济管理学科建设的目标,并从4个方面对我国林业经济管理学科建设提出了具体的内容。