论约束理论在高校行政管理中的应用

将广泛运用于企业的约束理论的管理理念和管理工具引入高校行政管理中，可以帮助高校行政管理者通过分析高校行政系统中的不良表象，识别并消除制约系统发展的约束，使系统目标实现最优化，达到更好地为高校教学科研服务的目的。     

四种英国产香烟烟气中自由基的ESR分析研究

研究了用电子自旋顺磁共振(ESR)法对香烟烟气中的自由基进行分析的样品处理方法及ESR检测方法.对四种英国产香烟样品中的粒相及气相自由基进行了分析检测并对检测结果进行了讨论.结论:大多数英国产的检测样品香烟中,含有1.5～3倍于国产对照香烟样品的气相自由基;而国产对照样品香烟的粒相自由基的含量水平则处于较高水平.实验结果还显示:同品牌的Sobranie香烟中,不同型号样品中粒相自由基含量与焦油含量具有负相关性,但不同品牌则不同;对于检测样品而言,气相自由基的含量与焦油含量有正相关性.     

校本课程开发的研究与实践

校本课程是国家课程的必要补充，是满足学生个性发展需要，形成特色学校的重要途径。我们广西容县校本课程开发组结合实际，以心理健康教育课程开发为重点，积极进行校本课程开发的研究与实践，使一批学校、教师在校本课程开发中做出了一定的成绩。一、转变观念，加强领导，做好校本课程开发的前期准备随着课改的不断深入开展，我们充分认识到现行的课程体系已经不能满足学生个性发展的需要，不利于学生全面主动的发展。为此，我们把校本课程的开发作为转变教师角色，发挥学生、教师、学校的主动性，构建科学的、生动活泼的课程体系的重要途…     

Scaling and Sustaining Effective Early Childhood Programs Through School–Family–University Collaboration

We describe the development, implementation, and evaluation of a comprehensive preschool to third grade prevention program for the goals of sustaining services at a large scale. The Midwest Child–Parent Center (CPC) Expansion is a multilevel collaborative school reform model designed to improve school achievement and parental involvement from ages 3 to 9. By increasing the dosage, coordination, and comprehensiveness of services, the program is expected to enhance the transition to school and promote more enduring effects on well‐being in multiple domains. We review and evaluate evidence from two longitudinal studies (Midwest CPC, 2012 to present; Chicago Longitudinal Study, 1983 to present) and four implementation examples of how the guiding principles of shared ownership, committed resources, and progress monitoring for improvement can promote effectiveness. The implementation system of partners and further expansion using “Pay for Success” financing shows the feasibility of scaling the program while continuing to improve effectiveness.     

教师教育转型期的几点思考

一、教师教育转型:地方新建本科院校传统师范类专业发展趋势地方新建本科院校其前身大多是地区性师范高等专科学校。在师专时代,这类学校的师范教育办得是有成绩的,为本地区输送了一大批高质量的教师。申报本科专业时,也大多是依托原有师范专业,加上“兼非师范”的字眼,才通过了专家组的评估。升本后这几年各学校发展很快,专业也逐年增加。这类新建地方本科院校,大多定位综合性本科院校,因此在办学过程中各专业也向综合性专业看齐。不可否认,不少学校因为是与其他类型的专科学校合并升格的,一些非师范性专业办得确实不错。但是那些传统的师…     

对甲苯磺酸催化合成橙花素

介绍了乙醇和 β -苯酚为原料 ,在对甲苯磺酸催化下合成橙花素的方法 ,讨论了反应时间、催化剂用量、反应摩尔比对合成工艺的影响     

应用ICP分析元明塔处理绿豆营养元素变化

无土、无营养、无光照情况下,在烧杯内用蒸馏水培育豆芽。试验表明元明塔干 种子培育的豆芽产量比对照高３．４％,因生成二氧化碳及乙烯气体失重率为２５．５４％,元明塔三元能量处理后干物质增重率为２％。通过等离子是感耦合发射光谱（ＩＣＰ）分析元明塔处理的种子、芽、种子、溶出物的主要元素与对照都存在着显著差异。这说明三种能量对绿豆生长的影响是全面而深入的。     

中国医学情报事业的理论与实践--纪念中国医学情报事业诞生40周年

本文回顾和总结了我国医学情报事业创建40周年来所取得的辉煌成绩,详细分析了各个不同历史时期的特点,阐述了21世纪我国医学情报事业发展将面临的挑战.     

Onset of channeling during DNA electrophoresis in a sparse ordered post array

The “channeling hypothesis” of DNA electrophoresis in sparse, ordered arrays of posts predicts that the DNA will move through the array relatively unhindered if (i) the spacing between the posts is larger than the DNA coil and (ii) the electric field lines are straight. We tested this hypothesis by studying the electrophoretic separation of a small plasmid DNA (pUC19, 2686 base pairs) and a large, linear DNA (λ-DNA, 48 500 base pairs) in a hexagonal array of 1 μm diameter posts with a pitch of 7 μm. At low electric field strengths, these DNAs are separated due to the long-lived, rope-over-pulley collisions of λ-DNA with the posts. The resolution is lost as the electric field increases due to the onset of channeling by the λ-DNA. Using a diffusive model, we show that channeling arises at low electric fields due to the finite size of the array. This channeling is not intrinsic to the system and is attenuated by increasing the size of the array. Higher electric fields lead to intrinsic channeling, which is attributed to the disparate time scales for a rope-over-pulley collision and transverse diffusion between collisions. The onset of channeling is a gradual process, in agreement with extant Brownian dynamics simulation data. Even at weak electric fields, the electrophoretic mobility of λ-DNA in the array is considerably higher than would be expected if the DNA frequently collided with the posts.     

基于椭球面拟合的股骨头修复建模(英文)

提出了一种可以获得目标病例健康时股骨头模型的新建模方法.首先利用一种精确的自动分割方法在髋骨部位CT序列图像中提取髋臼轮廓;然后使用基于等距栅格采样法与辐条式采样法相结合的混合采样法得到髋臼凹面的空间坐标点集,并剔除其中的误差采样点;最后采用基于二次曲面一般方程的方法拟合原始股骨头椭球面模型.通过对2倒不同坏死程度的男性患者进行修复性的对比仿真,以及对50例不同年龄(25～79岁)患者修复重建后的匹配误差统计分析,证明此方法可以良好地还原坏死的股骨头模型,既为骨科临床中的精确手术定位提供了理论模型,又为针对个体化制造的人工假体生产提供了新的实践方法.