1—氯代正烷烃凝聚型性能的拓扑化学研究

本文用拓朴方法探讨了1—氯代正烷烃的凝聚型性能与其分子结构之间的关系,提出一个普遍适用于1—氯代正烷烃凝聚型性能的定量关系式。对沸点、密度和折光指数的计算结果表明,计算值都很接近实验值。应用这一定量关系,不仅能够合理表征1—氯代正烷烃的结构性能关系,而且有助于揭示物质结构与性能关系之间的奥秘。     

学者散文批评文化学方法论

论文受《当代西方艺术文化学》所述艺术研究的“三维模式图”启发,主张用文化学方法研究学者散文,并从文化史、文化域、文化人（创作主体）和文化层（文化文本）四个交叉的向度（或称“文化生命圈”）纵横剖析学者散文的几乎所有侧面;提出散文文本词指（表层）、象指（中层）、义指（深层）和心指（隐层）四层分剖法;新创了“散文四要素”第一系列重要术语、概念和范畴,为研究散文及学者散文设置了一套全新的理论批评方法。     

A pedagogical alliance for academic achievement: Socio-Emotional effects on assessment outcomes

Assessment of student learning outcomes is often discussed in relation to curriculum, standards and even administration practices. However, assessment of learning outcomes is rarely discussed in light of students’ socio-emotional contexts, which might help or hinder learning outcomes. For example, do students’ perceptions of the teacher as trustworthy influence their empathic views on classmates, learning engagement, academic achievement and wellbeing? The present paper reports the results of a theoretically-driven, short-term longitudinal study designed to explore the effects of socio-emotional variables, specifically students’ trust in teachers and empathy towards self and peers on engagement for learning, academic achievement, and wellbeing. Grounded in attachment theory and the LEAFF model, Panel Structural Equation Modeling (P-SEM) results revealed three significant pathways, which provide evidence that student trust in teachers may serve to launch a domino effect of outcomes, predicting students’ empathic views of classmates, learning engagement, academic achievement, and wellbeing.     

我国当前有效需求问题研究

我国长期以来存在着有效需求不足的问题,这制约了我国经济的发展。造成我国有效需求不足的根本原因是结构上不平衡,具体是:供需结构和产业结构发展不平衡、城乡差距过大、收入分配结构不平衡及消费结构和观念转变不到位。政府应该调整宏观经济政策,从根本上解决有效需求不足的问题。     

基尔霍夫定律在电视机故障分析中的应用

本介绍一例在检修JD12型电视机故障时，运用基尔霍夫定律正确分析判断故障原因的过程。     

略论中国古代小说和戏曲中的因果报应观念

因果报应是中国古代小说、戏曲的一个母题。因果报应观念渗透并深刻影响了中国古代叙事作品的发展及特质 ,在操作层面上具功能性意义 ,而尤其影响到叙事结构的民族特色。对因果报应观念的文本分析 ,不应局限于宗教角度 ,而应取历史的发展的角度。     

Korteweg-de-Vries方程有限谱数值格式

以kdV方程为模型,利用有限谱方法构造数值计算格式,检验有限谱法计算含有色散项的非线性方程的精度,并对孤立波的演化及孤立波的碰撞进行了数值模拟,结果说明有限谱数值格式能较准确地模拟孤立波的行为.同时,把有限谱数值格式的计算结果同解析解进行对比,结果表明有限谱法具有较高的精度.     

Effect Analysis Using Nonlinear Structural Equation Mixture Modeling

In this article, we present an approach for comprehensive analysis of the effectiveness of interventions based on nonlinear structural equation mixture models (NSEMM). We provide definitions of average and conditional effects and show how they can be computed. We extend the traditional moderated regression approach to include latent continous and discrete (mixture) variables as well as their higher order interactions, quadratic or more general nonlinear relationships. This new approach can be considered a combination of the recently proposed EffectLiteR approach and the NSEMM approach. A key advantage of this synthesis is that it gives applied researchers the opportunity to gain greater insight into the effectiveness of the intervention. For example, it makes it possible to consider structural equation models for situations where the treatment is noneffective for extreme values of a latent covariate but is effective for medium values, as we illustrate using an example from the educational sciences.     

关于借贷记帐法原理的深入剖析

通过对借贷记帐法原理的深入阐述,丰富和完善了借贷记帐法原理的相关内容,使其更加充实和具有说服力,对初学者的学习和实战操作都具有极强的指导意义.     

量子几何光学中光线的形象

经典几何光学与经典力学的相似性，使哈密顿光学应运而生．光学共轭矩与量子力学共轭矩的相似性，使光线光学的量子化理论得以建立，从而形成光线力学的理论体系，“经典光线”的模型于是被波粒二象性的现代光线形象所替代．