基于VB的试卷生成系统的开发

介绍了用VB开发的试卷生成系统的功能特点、主界面、整体程序结构框图,以及设计过程中题库目录验证、章数与题量显示、各单元抽题数量的确定及生成分试卷和总体试卷等主要环节的编程技术。该系统以有关课程题库为背景进行了上机调试,均能可靠运行。     

福建省游泳场馆游泳者风险管理问题研究

结合福建省游泳场馆游泳者现状,采用多种方法游泳者风险及游泳场馆溺死问题进行研究,旨在建立游泳场馆安全管理体系.研究结果表明,游泳场馆游泳者风险源包括23个风险因素,福建省游泳场馆游泳者面临12个主要风险因素,游泳场馆可以采用风险避免、风险控制、风险转移和风险自留四种方法应对游泳者风险.     

燃煤加温温度控制及双向超温报警装置的研究

采用数字电路及模拟电路，研究了燃煤加温控制温度及双向超温报警装置的工作原理与调试方法。     

瀚海考

原指贝加尔湖的瀚海,至盛唐后同时具三种含义:贝加尔湖、天池、沙漠.瀚海变为西部沙漠的代称,是武则天时期领瀚海都督一职的回纥部族短暂西迁留下的痕迹;随后瀚海军府在庭州设立,又使瀚海与西域相关联.元代称杭爱山为瀚海,是当地居民沿用唐瀚海都督府所在地名山.明清时瀚海为大篌沙漠的专称.     

技术标准下的专利池对我国自主创新的影响研究

随着技术标准与专利的日益结合,技术标准下的专利池日渐成为举足轻重的专利许可主体。本文以发展中国家为视角,剖析了技术标准下的专利池对我国自主创新的影响。在专利池形成过程中,企业进入专利池的预期对我国自主创新有强激励作用,同时也可能导致重复研发。专利池所依附标准的不确定性也可能导致自主创新的迟滞。专利池形成之后,通过促进技术扩散和技术溢出,将有利于我国自主创新能力的提高。但另一方面,专利池的知识产权滥用行为则会对我国的自主创新产生消极影响。同时,专利池内部的“搭便车”行为和在位厂商地位也可能会妨碍创新。     

让插图唤起历史的温情追忆

不少历史教育课堂只注重知识的传授＂纯的学习学生感到枯燥、乏味,没有兴趣。如在历史课堂上通过插图的引入,老师富有情感的讲解,会有更好的教学效果这样的教学可以营造宽松、融洽的教学气氛,使学生对遥远的历史知识有一种温暖的意境,使得师生、生生、师生与文本的对话变得更加容易、轻松和温暖。插图搭建了师生对话的桥梁,在温暖的课堂气氛中,师生共同完成了对历史的温情追忆。     

新型循环水动物游泳水池的研制与应用

根据力学原理,研制了新型动物游泳水池。实践证明,该水池具有强度可控和操作简单等特点。     

运动诱导大鼠骨骼肌线粒体UCP3蛋白快速上调实验——对胞浆中UCP3蛋白库存在性的探讨

研究目的:本研究拟以三级递增负荷跑台运动为模型探讨骨骼肌UCP3mRM蛋白表达的变化规律及线粒体蛋白水平快速升高的可能机理.研究方法:以SD大鼠三级递增负荷跑台运动为实验模型,测定解偶联蛋白3(UCP3)mRNA和线粒体UCP3蛋白表达.研究结果:UCP3mRNA表达在未训练和耐力训练组表现出相同的变化规律,即运动至45、90、120、150min时均较安静时显著性升高;其蛋白表达水平在未训练和耐力训练组也表现出相同的变化规律,即运动至120、150min时都较安静时呈显著性增高.结论:运动能够快速升高线粒体UCP3蛋白水平,细胞内可能存在UCP3蛋白库,运动加快了蛋白库中UCP3蛋白向线粒体组装和转运.     

专利联盟研究进展——基于国内外学术文献的内容分析

基于Elsevier Science和EBSCO中Academic Search Premier和Business Source Premier数据库,基于中国知网(CNKI)中的SCI、EI及CSSCI数据库,采用内容分析的方法,追踪专利联盟的最新学术进展,通过社会网络的相关方法研究了专利联盟的学术社区,借助卡方检验对国内外的研究进行了对比。     

How students reason about matter flows and accumulations in complex biological phenomena: An emerging learning progression for mass balance

In recent years, there has been a strong push to transform STEM education at K-12 and collegiate levels to help students learn to think like scientists. One aspect of this transformation involves redesigning instruction and curricula around fundamental scientific ideas that serve as conceptual scaffolds students can use to build cohesive knowledge structures. In this study, we investigated how students use mass balance reasoning as a conceptual scaffold to gain a deeper understanding of how matter moves through biological systems. Our aim was to lay the groundwork for a mass balance learning progression in physiology. We drew on a general models framework from biology and a covariational reasoning framework from math education to interpret students' mass balance ideas. We used a constant comparative method to identify students' reasoning patterns from 73 interviews conducted with undergraduate biology students. We helped validate the reasoning patterns identified with >8000 written responses collected from students at multiple institutions. From our analyses, we identified two related progress variables that describe key elements of students' performances: the first describes how students identify and use matter flows in biology phenomena; the second characterizes how students use net rate-of-change to predict how matter accumulates in, or disperses from, a compartment. We also present a case study of how we used our emerging mass balance learning progression to inform instructional practices to support students' mass balance reasoning. Our progress variables describe one way students engage in three dimensional learning by showing how student performances associated with the practice of mathematical thinking reveal their understanding of the core concept of matter flows as governed by the crosscutting concept of matter conservation. Though our work is situated in physiology, it extends previous work in climate change education and is applicable to other scientific fields, such as physics, engineering, and geochemistry.